simulink stateflow compiling

.gitignore

@@ -1,5 +1,9 @@
 .pio
 .vscode
+.vscode/*
+.vscode/**
+compress
+data_gz
 platformio.ini
 include/wifi_credentials.h
 include/*.gz.h

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/PCA9685-Arduino"]
+	path = lib/PCA9685-Arduino
+	url = https://github.com/NachtRaveVL/PCA9685-Arduino

.vscode/extensions.json

@@ -1,7 +0,0 @@
-{
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
-    "recommendations": [
-        "platformio.platformio-ide"
-    ]
-}

.vscode/settings.json

@@ -1,15 +0,0 @@
-{
-    "files.associations": {
-        "random": "cpp",
-        "array": "cpp",
-        "*.tcc": "cpp",
-        "deque": "cpp",
-        "list": "cpp",
-        "string": "cpp",
-        "unordered_map": "cpp",
-        "vector": "cpp",
-        "string_view": "cpp",
-        "memory": "cpp",
-        "ranges": "cpp"
-    }
-}

README.md

@@ -35,8 +35,5 @@ upload_port = <IPADRESS>
 upload_flags =
   --port=8266
   --auth=admin
-
-lib_deps =
-  ottowinter/PCA9685 16-Channel PWM Driver Module Library @ 1.2.9
 ```
 

create_gz_c_arr.py

@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 
 import os, gzip
 # https://www.mischianti.org/2020/10/26/web-server-with-esp8266-and-esp32-byte-array-gzipped-pages-and-spiffs-2/
@@ -27,8 +28,11 @@ def convert_to_gzip(src, out, f):
             f_out.write(top.encode(encoding='utf-8'))
 
 
-src='include/http/'
+src='data/'
-out='include/'
+out='compress/'
+
+if not 'compress' in os.listdir():
+    os.mkdir('compress')
 
 for f in os.listdir(src):
     convert_to_gzip(src, out, f)

create_gz_files.py

@@ -0,0 +1,15 @@
+#!/usr/bin/python3
+
+import os, gzip
+# https://stackoverflow.com/questions/8156707/gzip-a-file-in-python
+
+src_dir='data'
+out_dir='data_gz'
+
+if not 'data_gz' in os.listdir():
+    os.mkdir('data_gz')
+
+for f in os.listdir(src_dir):
+    with open(f'{src_dir}/{f}', 'rb') as f_in:
+        with gzip.open(f'{out_dir}/{f}.gz', 'wb') as f_out:
+            f_out.writelines(f_in)

data/index.html

@@ -0,0 +1,74 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <title>ESP8266 Treppenlicht</title>
+  <!-- main style sheet -->
+  <link href="/favicon.png" rel="icon" type="image/png" sizes="10x10">
+  <link href="/style.css" rel="stylesheet" type="text/css">
+</head>
+
+<body>
+  <div class="kopfzeile" style="text-align: center;">
+    <b>Treppenlicht</b>
+  </div>
+
+  <div class="ueberschrift">
+    Helligkeit
+    <!--<label id="label_pwm">
+      </label>-->
+      <div class="slider">
+        <input type="range" class="regler" id="helligkeit" name="rangeInput" min="0" max="100" value="50"
+          oninput="amount1.value=helligkeit.value">
+        <br>
+        <output name="amount1" id="amount1" for="helligkeit">50</output>
+      </div>
+  </div>
+  <div class="ueberschrift">
+    Helligkeit bei Dunkelheit
+    <!--<label id="label_pwm_dark">
+      </label>-->
+      <div class="slider">
+        <input type="range" class="regler" id="helligkeit_dunkel" name="rangeInput" min="0" max="100" value="50"
+          oninput="amount2.value=helligkeit_dunkel.value">
+        <br>
+        <output name="amount2" id="amount2" for="helligkeit_dunkel">50</output>
+      </div>
+  </div>
+
+  <div class="ueberschrift">
+    Laufgeschwindigkeit
+    <!--<label id="label_geschwindigkeit">
+      </label>-->
+          <div class="slider">
+            <input type="range" class="regler" id="geschwindigkeit" name="rangeInput" min="0" max="100" value="50"
+              oninput="amount3.value=geschwindigkeit.value">
+            <br>
+            <output name="amount3" id="amount3" for="geschwindigkeit">50</output>
+          </div>
+  </div>
+
+  <div class="ueberschrift">
+    Licht-An-Zeit
+    <!--  <label id="label_time">
+        </label>-->
+        <div class="slider">
+          <input type="range" class="regler" id="time" name="rangeInput" min="0" max="100" value="50"
+            oninput="amount4.value=time.value">
+          <br>
+          <output name="amount4" id="amount4" for="time">50</output>
+        </div>
+  </div>
+
+  <div class="terminal">
+    <input type="button" id="clear_term" value="clear" onclick="clearTerminal();">
+    <input type="checkbox" id="scroll" name="scroll" value="scroll" checked>
+    <label for="scroll"> autoscroll </label>
+    <textarea id="term">waiting for log messages ...&#10;</textarea>
+  </div>
+
+</body>
+
+<script src="/input.js"></script>
+
+</html>

data/input.js

@@ -0,0 +1,40 @@
+// var slider = document.getElementById("helligkeit");
+// var output = document.getElementById("l_pwm");
+// output.innerHTML = slider.value; // Display the default slider value
+
+// // Update the current slider value (each time you drag the slider handle)
+// slider.oninput = function() {
+//   output.innerHTML = this.value;
+// }
+
+
+
+let xhr = new XMLHttpRequest();
+              
+xhr.onreadystatechange = function(){
+  if(xhr.readyState == 4) {
+    if (xhr.status == 200){
+      console.log(xhr.responseText);
+      terminal = document.getElementById("term");
+      autoscroll = document.getElementById("scroll");
+      terminal.innerHTML += xhr.responseText;
+      if(autoscroll.checked)
+        terminal.scrollTop = terminal.scrollHeight;
+    }
+    else {
+      console.log("status:", xhr.status);
+    }
+  }
+}
+
+function reloadTerminal() {
+  xhr.open("POST", "/app=terminal", true);
+  xhr.send();
+  setTimeout(reloadTerminal, 1000);
+};
+
+reloadTerminal();
+
+function clearTerminal() {
+  document.getElementById("term").innerHTML = '';
+}

data/style.css

@@ -0,0 +1,122 @@
+html {
+  font-size: 16px;
+  font-family: sans-serif, Arial, Helvetica;
+  background-color: #d4d4d4;
+  height: 100%;
+  /* background-image: url('Background.png'); */
+  background-repeat: repeat;
+  background-size: 150% 150%;
+}
+
+body {
+  height: 100%;
+  margin: 0 auto;
+  border: none;
+  border-radius: 3;
+}
+
+.topbar {
+  padding: 1em;
+  background-color: #1f1f1f;
+  color: white;
+  font-size: x-large;
+  text-align: center;
+}
+
+.ueberschrift{
+  color: #ffffff;
+  font-size: 50px;
+  width: 100%;
+  text-align: center;
+}
+
+.regler{
+
+  -webkit-appearance: none;
+  height: 30px;
+  width: 100%;
+  border-radius: 20px;
+  outline: black;
+  background-color: rgb(176, 188, 228);
+}
+.regler::-webkit-slider-thumb{
+  -webkit-appearance: none;
+  appearance: none;
+  width: 5%;
+  height: 20px;
+  border-radius: 10px;
+  background-color: rgb(107, 122, 192);
+  cursor:pointer;
+}
+input[type=range]::-webkit-slider-thumb{
+  -webkit-appearance: none;
+  border:none;
+  height: 30px;
+  width: 4%;
+  border-radius: 30px;
+}
+.slider {
+  width: 100%;
+}
+
+.kopfzeile{
+  color: #1f1f1f;
+  font-size: 50px;
+  width: 100%;
+  background-color: #8d8a8a;
+}
+
+
+/*-------------------------------------------------------*/
+
+
+/*Switch:
+.switch {
+  position: relative;
+  display: inline-block;
+  width: 60px;
+  height: 34px;
+}
+
+Hide default HTML checkbox
+.switch input {
+  opacity: 0;
+  width: 0;
+  height: 0;
+}
+*/
+/* The slider */
+
+
+/*input:checked + .slider {
+  background-color: #04AA6D;
+}
+
+input:focus + .slider {
+  box-shadow: 0 0 1px #04AA6D;
+}*/
+/*
+input:checked + .slider:before {
+  -webkit-transform: translateX(26px);
+  -ms-transform: translateX(26px);
+  transform: translateX(26px);
+}
+*/
+
+.terminal {
+  margin:5%;
+  padding: 1%;
+  width: 80%;
+  border: 1px solid black;
+  border-radius: 5px;
+}
+
+#term {
+  font-size: large;
+  width: 100%;
+  height: 20em;
+}
+
+#clear_term {
+  margin: 2px;
+}

doku.md

@@ -0,0 +1,86 @@
+Hardware Timer didnt work https://github.com/khoih-prog/ESP8266TimerInterrupt#why-using-isr-based-hardware-timer-interrupt-is-better
+
+=> Software Timer https://ullisroboterseite.de/esp8266-timing.html#timer
+
+
+
+
+### __Zum aktivieren von GDBStub:__
+```c
+#include <GDBStub.h>
+
+...
+
+void setup() {
+  Serial.begin(460800);
+  gdbstub_init();
+```
+
+### __Achtung !__
+GDB muss dafür compiled werden
+GDB-Version aus Arduino Toolchain hat Support
+
+```sh
+$ ./start_xtensa_gdb_stub.sh
+```
+
+### __Achtung !__
+Don`t forget __\r__
+
+ESP-OTA wird von ufw oder Defender geblockt.
+- Windows -> Python needs to be granted with rights
+- Linux -> open udp port in ufw -> 
+
+```sh
+platform.ini 
+upload_flags =
+  --host-port <PORT>
+...
+$ sudo ufw allow tcp/<PORT>
+```
+
+
+```c++
+server.streamFile(f, mime::getContentType(SRH::_path), requestMethod);
+
+=====>
+
+const String& p = SRH::_path;
+if(p.endsWith(".gzip")) {
+    server.sendHeader("Content-Encoding", "gzip");
+    server.streamFile(f, mime::getContentType(p.substring(0, p.length()-5)), requestMethod);
+}
+else
+    server.streamFile(f, mime::getContentType(SRH::_path), requestMethod);
+```
+
+LED_sequence_v1:
+TODO: 
+- disable led stripes after defined time (webserver paramter?)
+- define what to do if people enter stairs from different directions
+- CAUTION: Sensor-Deadtime at LEAST 8 seconds
+- --> switch off with person leaving stairs might not be possible
+
+Webserver on v0.3.0 now working with LittleFS
+TODO:
+- check dir for files automatic
+- move handleNotFound to httpserver.h
+- maybe compress files ?
+
+
+### LED Flickering issue
+https://github.com/NachtRaveVL/PCA9685-Arduino/issues/15
+PlatformIO Library veraltet !!
+
+
+### TIMER in OTA unterbrechen !!!!!
+
+
+
+### further improvments
+with streamFile gzip encoded Files can be sent
+this reduces space on fs !
+new easier script needed to just convert to .gz
+maybe measure timings on ESP
+
+__=> use serveStatic because way simpler !__

doku.txt

@@ -1,3 +0,0 @@
-Hardware Timer didnt work https://github.com/khoih-prog/ESP8266TimerInterrupt#why-using-isr-based-hardware-timer-interrupt-is-better
-=> Software Timer https://ullisroboterseite.de/esp8266-timing.html#timer
-

include/http/index.html

@@ -1,40 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>ESP8266 Treppenlicht</title>
-    <!-- main style sheet -->
-    <link href="/favicon.png" rel="icon" type="image/png" sizes="16x16">
-    <link href="/style.css" rel="stylesheet" type="text/css">
-
-  </head>
-  <body>
-    <div class="topbar">
-      ESP8266 Treppenlicht Controller
-    </div>
-    <div class="control">
-      <div class="brightness">
-      </div>
-      <div class="onoff">
-        toggle all
-        <label id="l_onoff"></label>
-        <label class="switch">
-          <input type="checkbox">
-          <span class="slider round"></span>
-        </label>
-      </div>
-      <div class="pwm">
-        <label id="label_pwm"></label>
-        <input type="range" min="1" max="100" value="50" class="rangeslider" id="range1">
-      </div>
-      <div class="timer">
-        <label id="label_timer"></label>
-        <input type="range" min="1" max="100" value="50" class="rangeslider" id="timer_range">
-      </div>
-    </div>
-    
-   
-  </body>
-
-  <script src="/input.js"></script>
-
-</html>

include/http/input.js

@@ -1,8 +0,0 @@
-var slider = document.getElementById("range1");
-var output = document.getElementById("l_pwm");
-output.innerHTML = slider.value; // Display the default slider value
-
-// Update the current slider value (each time you drag the slider handle)
-slider.oninput = function() {
-  output.innerHTML = this.value;
-}

include/http/style.css

@@ -1,132 +0,0 @@
-html {
-  font-size: 10px;
-  font-family: sans-serif, Arial, Helvetica;
-  background-color: #b3b3b3;
-}
-
-.topbar {
-  padding: 1em;
-  background-color: #1f1f1f;
-
-  color: white;
-  font-size: x-large;
-  text-align: center;
-}
-
-.control {
-  padding: 1em;
-}
-
-p, li {
-  font-size: 16px;
-  line-height: 2;
-  letter-spacing: 1px;
-}
-
-
-body {
-  margin: 0 auto;
-  border: 1px solid black;
-  border-radius: 3;
-}
-
-
-
-/* The switch - the box around the slider */
-.switch {
-  position: relative;
-  display: inline-block;
-  width: 60px;
-  height: 34px;
-}
-
-/* Hide default HTML checkbox */
-.switch input {
-  opacity: 0;
-  width: 0;
-  height: 0;
-}
-
-/* The slider */
-.slider {
-  position: absolute;
-  cursor: pointer;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background-color: #ccc;
-  -webkit-transition: .4s;
-  transition: .4s;
-}
-
-.slider:before {
-  position: absolute;
-  content: "";
-  height: 26px;
-  width: 26px;
-  left: 4px;
-  bottom: 4px;
-  background-color: white;
-  -webkit-transition: .4s;
-  transition: .4s;
-}
-
-input:checked + .slider {
-  background-color: #04AA6D;
-}
-
-input:focus + .slider {
-  box-shadow: 0 0 1px #04AA6D;
-}
-
-input:checked + .slider:before {
-  -webkit-transform: translateX(26px);
-  -ms-transform: translateX(26px);
-  transform: translateX(26px);
-}
-/* Rounded sliders */
-.slider.round {
-  border-radius: 34px;
-}
-.slider.round:before {
-  border-radius: 50%;
-}
-
-
-
-
-/* The slider itself */
-.rangeslider {
-  -webkit-appearance: none;  /* Override default CSS styles */
-  appearance: none;
-  width: 50%; /* Full-width */
-  height: 34px; /* Specified height */
-  border-radius: 34px; /* range round corners */
-  background: #d3d3d3; /* Grey background */
-  outline: none; /* Remove outline */
-  opacity: 0.7; /* Set transparency (for mouse-over effects on hover) */
-  -webkit-transition: .2s; /* 0.2 seconds transition on hover */
-  transition: opacity .2s;
-
-}
-/* Mouse-over effects */
-.rangeslider:hover {
-  opacity: 1; /* Fully shown on mouse-over */
-}
-/* The slider handle (use -webkit- (Chrome, Opera, Safari, Edge) and -moz- (Firefox) to override default look) */
-.rangeslider::-webkit-slider-thumb {
-  -webkit-appearance: none; /* Override default look */
-  appearance: none;
-  width: 26px; /* Set a specific slider handle width */
-  height: 26px; /* Slider handle height */
-  border-radius: 50%; /* Round Element */
-  background: #04AA6D; /* Green background */
-  cursor: pointer; /* Cursor on hover */
-}
-.rangeslider::-moz-range-thumb {
-  width: 26px; /* Set a specific slider handle width */
-  height: 26px; /* Slider handle height */
-  background: #04AA6D; /* Green background */
-  cursor: pointer; /* Cursor on hover */
-}

include/ota.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <ESP8266WiFi.h>
+#include <WiFiUdp.h>
+#include <ArduinoOTA.h>
+
+void ota_setup() {
+  ArduinoOTA.setPort(8266);
+  ArduinoOTA.setHostname("ESP_Treppenlicht");
+  ArduinoOTA.setPassword("admin");
+  // Password can be set with it's md5 value as well
+  // MD5(admin) = 21232f297a57a5a743894a0e4a801fc3
+  // ArduinoOTA.setPasswordHash("21232f297a57a5a743894a0e4a801fc3");
+
+  ArduinoOTA.onStart([]() {
+    String type;
+    if (ArduinoOTA.getCommand() == U_FLASH) {
+      type = "sketch";
+    } else { // U_FS
+      type = "filesystem";
+    }
+
+    // NOTE: if updating FS this would be the place to unmount FS using FS.end()
+    Serial.println("Start updating " + type);
+  });
+  ArduinoOTA.onEnd([]() {
+    Serial.println("\nEnd");
+  });
+  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
+  });
+  ArduinoOTA.onError([](ota_error_t error) {
+    Serial.printf("Error[%u]: ", error);
+    if (error == OTA_AUTH_ERROR) {
+      Serial.println("Auth Failed");
+    } else if (error == OTA_BEGIN_ERROR) {
+      Serial.println("Begin Failed");
+    } else if (error == OTA_CONNECT_ERROR) {
+      Serial.println("Connect Failed");
+    } else if (error == OTA_RECEIVE_ERROR) {
+      Serial.println("Receive Failed");
+    } else if (error == OTA_END_ERROR) {
+      Serial.println("End Failed");
+    }
+  });
+  ArduinoOTA.begin();
+
+}

lib/README

@@ -1,46 +0,0 @@
-
-This directory is intended for project specific (private) libraries.
-PlatformIO will compile them to static libraries and link into executable file.
-
-The source code of each library should be placed in a an own separate directory
-("lib/your_library_name/[here are source files]").
-
-For example, see a structure of the following two libraries `Foo` and `Bar`:
-
-|--lib
-|  |
-|  |--Bar
-|  |  |--docs
-|  |  |--examples
-|  |  |--src
-|  |     |- Bar.c
-|  |     |- Bar.h
-|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
-|  |
-|  |--Foo
-|  |  |- Foo.c
-|  |  |- Foo.h
-|  |
-|  |- README --> THIS FILE
-|
-|- platformio.ini
-|--src
-   |- main.c
-
-and a contents of `src/main.c`:
-```
-#include <Foo.h>
-#include <Bar.h>
-
-int main (void)
-{
-  ...
-}
-
-```
-
-PlatformIO Library Dependency Finder will find automatically dependent
-libraries scanning project source files.
-
-More information about PlatformIO Library Dependency Finder
-- https://docs.platformio.org/page/librarymanager/ldf.html

lib/httpserver/filesys.cpp

@@ -0,0 +1,128 @@
+#include "filesys.h"
+
+FSInfo fsinfo;
+
+bool mount_fs() {
+  if(!LittleFS.begin()) {
+    Serial.println("[ERROR] LittleFS.info(), reset ...");
+    return false;
+  }
+
+  if(!LittleFS.info(fsinfo)) {
+    Serial.println("[ERROR] LittleFS.info(), reset ...");
+    return false;
+  }
+
+  printf("Filesystem opened:\n\r");
+  printf("\ttotalBytes:\t%d\n\r",     fsinfo.totalBytes);
+  printf("\tusedBytes:\t%d\n\r",      fsinfo.usedBytes);
+  printf("\tblockSize:\t%d\n\r",      fsinfo.blockSize);
+  printf("\tpageSize:\t%d\n\r",       fsinfo.pageSize);
+  printf("\tmaxOpenFiles:\t%d\n\r",   fsinfo.maxOpenFiles);
+  printf("\tmaxPathLength:\t%d\n\r",  fsinfo.maxPathLength);
+  printf("\n\r");
+
+  return true;
+}
+
+bool format_fs() {
+  printf("Formatting FS ! \n\r");
+  return LittleFS.format();
+}
+
+void ls(const char * dirname) {
+  Serial.printf("ls -l %s\n\r", dirname);
+  Dir root = LittleFS.openDir(dirname);
+
+  while (root.next()) {
+    File file = root.openFile("r");
+
+    time_t lw = file.getLastWrite();
+    struct tm * tmstruct = localtime(&lw);
+    Serial.printf("%8d  %02d %02d %02d:%02d  %s\n\r",
+        file.size(), 
+        tmstruct->tm_mon + 1, 
+        tmstruct->tm_mday,
+        tmstruct->tm_hour,
+        tmstruct->tm_min,
+        root.fileName().c_str());
+    file.close();
+  }
+  Serial.println();
+}
+
+File open(const char * path) {
+  return LittleFS.open(path, "r");
+}
+
+
+void printFile(const char * path) {
+  Serial.printf("Reading file: %s\n\r", path);
+
+  File file = LittleFS.open(path, "r");
+  if (!file) {
+    Serial.println("Failed to open file for reading");
+    return;
+  }
+
+  Serial.print("Read from file: ");
+  while (file.available()) {
+    Serial.write(file.read());
+  }
+  file.close();
+}
+
+void writeFile(const char * path, const char * message) {
+  Serial.printf("Writing file: %s\n\r", path);
+
+  File file = LittleFS.open(path, "w");
+  if (!file) {
+    Serial.println("Failed to open file for writing");
+    return;
+  }
+  if (file.print(message)) {
+    Serial.println("File written");
+  } else {
+    Serial.println("Write failed");
+  }
+  delay(2000); // Make sure the CREATE and LASTWRITE times are different
+  file.close();
+}
+
+void appendFile(const char * path, const char * message) {
+  Serial.printf("Appending to file: %s\n\r", path);
+
+  File file = LittleFS.open(path, "a");
+  if (!file) {
+    Serial.println("Failed to open file for appending");
+    return;
+  }
+  if(file.print(message)) {
+    Serial.println("Message appended");
+  } else {
+    Serial.println("Append failed");
+  }
+  file.close();
+}
+
+void renameFile(const char * path1, const char * path2) {
+  Serial.printf("Renaming file %s to %s\n\r", path1, path2);
+  if (LittleFS.rename(path1, path2)) {
+    Serial.println("File renamed");
+  } else {
+    Serial.println("Rename failed");
+  }
+}
+
+void deleteFile(const char * path) {
+  Serial.printf("Deleting file: %s\n\r", path);
+  if (LittleFS.remove(path)) {
+    Serial.println("File deleted");
+  } else {
+    Serial.println("Delete failed");
+  }
+}
+
+
+
+ 

lib/httpserver/filesys.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <LittleFS.h>
+
+// some usefull wrappers for Filesystem
+
+bool mount_fs();
+bool format_fs();
+
+File open(const char * path);
+
+void ls(const char * dirname);
+void printFile(const char * path);
+void writeFile(const char * path, const char * message);
+void appendFile(const char * path, const char * message);
+void renameFile(const char * path1, const char * path2);
+void deleteFile(const char * path);

lib/httpserver/httpserver.cpp

@@ -0,0 +1,68 @@
+#include "httpserver.h"
+
+
+bool HTTPServer::start() {
+    if(!mount_fs()) {
+        logf("cant mount filesystem, EXIT !\n\r");
+        return false;
+    }
+    logf("LittleFS mounted !\n\r");
+    logf("root:\n\r");
+    this->listRoot();
+    logf("\n\r");
+
+    // default handler
+    this->onNotFound([this]() {
+        String message = "File Not Found\n\n";
+        message += "URI: ";
+        message += uri();
+        message += "\nMethod: ";
+        message += (method() == HTTP_GET) ? "GET" : "POST";
+        message += "\nArguments: ";
+        message += args();
+        message += "\n";
+
+        for (uint8_t i = 0; i < args(); i++) {
+            message += " " + argName(i) + ": " + arg(i) + "\n";
+        }
+        send(404, "text/plain", message);
+    });
+
+    // add static root file handler for http
+    this->serveStatic("/", LittleFS, "/");
+    this->begin();
+    Serial.printf("Server active on Port 80 !\n\r");
+    return true;
+}
+
+void HTTPServer::logf(const char *format, ...) {
+    va_list args;
+    va_start(args, format);
+    char temp[64];
+    size_t len = vsnprintf(temp, sizeof(temp), format, args);
+    Serial.print(log_prefix);
+    Serial.write(temp, len);
+    va_end(args);
+}
+
+void HTTPServer::logt(const char *format, ...) {
+    va_list args;
+    va_start(args, format);
+    // append logging string to local buffer
+    if(tbuf_head < TBUF_LEN) {
+        size_t len = vsnprintf(tbuf+tbuf_head, TBUF_LEN-tbuf_head, format, args);
+        tbuf_head += len;
+    }
+    va_end(args);
+}
+
+void HTTPServer::start_apps() {
+    // application handler
+    this->on("/app=terminal", HTTP_POST, [this]() {
+        if(tbuf_head) {
+            send(200, "text/plain", tbuf);
+            tbuf_head = 0;
+        }
+    });
+
+}

lib/httpserver/httpserver.h

@@ -0,0 +1,42 @@
+// Wrapper for ESP8266WebServer with Filesystem as HTTP source
+
+#pragma once
+
+#include <ESP8266WebServer.h>
+#include <stdarg.h>
+#include "filesys.h"
+
+// debug log <ESP8266WebServer.h>
+// #define DEBUGV(f,...) do { Serial.printf(PSTR(f), ##__VA_ARGS__); } while (0)
+
+#define TBUF_LEN 256
+
+
+class HTTPServer : public ESP8266WebServer {
+
+private:
+    const char* rootDir = "/";
+    const char* log_prefix = "[HTTPServer] ";
+
+    size_t tbuf_head = 0;
+    char tbuf[TBUF_LEN];
+ 
+    void listRoot() {
+        ls(rootDir);
+    }
+
+public:
+    HTTPServer(const int _port, const char* _rootDir) :
+       ESP8266WebServer(_port), rootDir(_rootDir)
+    { }
+    ~HTTPServer()
+    {
+        Serial.printf("[HTTPServer] shut down ...\n\r");
+    }
+    
+    bool start();
+    void start_apps();
+    
+    void logf(const char *format, ...);
+    void logt(const char *format, ...);
+};

lib/treppe/FSMTreppe/FSMTreppe.cpp

@@ -0,0 +1,170 @@
+//
+// Academic License - for use in teaching, academic research, and meeting
+// course requirements at degree granting institutions only.  Not for
+// government, commercial, or other organizational use.
+//
+// File: FSMTreppe.cpp
+//
+// Code generated for Simulink model 'FSMTreppe'.
+//
+// Model version                  : 1.22
+// Simulink Coder version         : 9.5 (R2021a) 14-Nov-2020
+// C/C++ source code generated on : Fri Jul  2 17:45:36 2021
+//
+// Target selection: ert.tlc
+// Embedded hardware selection: ARM Compatible->ARM Cortex-M
+// Code generation objectives: Unspecified
+// Validation result: Not run
+//
+#include "FSMTreppe.h"
+
+// Named constants for Chart: '<Root>/FSMTreppe'
+const uint8_t FSMTreppe_IN_animation_down = 1U;
+const uint8_t FSMTreppe_IN_animation_up = 2U;
+const uint8_t FSMTreppe_IN_idle = 3U;
+
+// Model step function
+void FSMTreppeModelClass::step()
+{
+  // Chart: '<Root>/FSMTreppe' incorporates:
+  //   Inport: '<Root>/anim_finished'
+  //   Inport: '<Root>/sensor_oben'
+  //   Inport: '<Root>/sensor_unten'
+
+  if (FSMTreppe_DW.temporalCounter_i1 < 511U) {
+    FSMTreppe_DW.temporalCounter_i1 = static_cast<uint16_t>
+      (FSMTreppe_DW.temporalCounter_i1 + 1U);
+  }
+
+  if (FSMTreppe_DW.is_active_c3_FSMTreppe == 0U) {
+    FSMTreppe_DW.is_active_c3_FSMTreppe = 1U;
+    FSMTreppe_DW.is_c3_FSMTreppe = FSMTreppe_IN_idle;
+
+    // Outport: '<Root>/anim_active'
+    FSMTreppe_Y.anim_active = 0U;
+    FSMTreppe_DW.got_sensor = 0U;
+    FSMTreppe_DW.got_anim_finished = 0U;
+    FSMTreppe_DW.finished_up = 0U;
+    FSMTreppe_DW.finished_dn = 0U;
+  } else {
+    switch (FSMTreppe_DW.is_c3_FSMTreppe) {
+     case FSMTreppe_IN_animation_down:
+      // Outport: '<Root>/anim_active'
+      FSMTreppe_Y.anim_active = 2U;
+      if ((FSMTreppe_DW.finished_dn == 1) || (FSMTreppe_DW.temporalCounter_i1 >=
+           300U)) {
+        FSMTreppe_DW.is_c3_FSMTreppe = FSMTreppe_IN_idle;
+
+        // Outport: '<Root>/anim_active'
+        FSMTreppe_Y.anim_active = 0U;
+        FSMTreppe_DW.got_sensor = 0U;
+        FSMTreppe_DW.got_anim_finished = 0U;
+        FSMTreppe_DW.finished_up = 0U;
+        FSMTreppe_DW.finished_dn = 0U;
+      } else {
+        if (FSMTreppe_U.sensor_unten) {
+          FSMTreppe_DW.got_sensor = 1U;
+        }
+
+        if (FSMTreppe_U.anim_finished) {
+          FSMTreppe_DW.got_anim_finished = 1U;
+        }
+
+        if ((FSMTreppe_DW.got_anim_finished == 1) && (FSMTreppe_DW.got_sensor ==
+             1)) {
+          FSMTreppe_DW.finished_dn = 1U;
+        }
+      }
+      break;
+
+     case FSMTreppe_IN_animation_up:
+      // Outport: '<Root>/anim_active'
+      FSMTreppe_Y.anim_active = 1U;
+      if ((FSMTreppe_DW.finished_up == 1) || (FSMTreppe_DW.temporalCounter_i1 >=
+           300U)) {
+        FSMTreppe_DW.is_c3_FSMTreppe = FSMTreppe_IN_idle;
+
+        // Outport: '<Root>/anim_active'
+        FSMTreppe_Y.anim_active = 0U;
+        FSMTreppe_DW.got_sensor = 0U;
+        FSMTreppe_DW.got_anim_finished = 0U;
+        FSMTreppe_DW.finished_up = 0U;
+        FSMTreppe_DW.finished_dn = 0U;
+      } else {
+        if (FSMTreppe_U.sensor_oben) {
+          FSMTreppe_DW.got_sensor = 1U;
+        }
+
+        if (FSMTreppe_U.anim_finished) {
+          FSMTreppe_DW.got_anim_finished = 1U;
+        }
+
+        if ((FSMTreppe_DW.got_anim_finished == 1) && (FSMTreppe_DW.got_sensor ==
+             1)) {
+          FSMTreppe_DW.finished_up = 1U;
+        }
+      }
+      break;
+
+     default:
+      // Outport: '<Root>/anim_active'
+      // case IN_idle:
+      FSMTreppe_Y.anim_active = 0U;
+      if (FSMTreppe_U.sensor_oben) {
+        FSMTreppe_DW.is_c3_FSMTreppe = FSMTreppe_IN_animation_down;
+        FSMTreppe_DW.temporalCounter_i1 = 0U;
+
+        // Outport: '<Root>/anim_active'
+        FSMTreppe_Y.anim_active = 2U;
+        FSMTreppe_DW.got_sensor = 0U;
+        FSMTreppe_DW.got_anim_finished = 0U;
+        FSMTreppe_DW.finished_dn = 0U;
+      } else if (FSMTreppe_U.sensor_unten) {
+        FSMTreppe_DW.is_c3_FSMTreppe = FSMTreppe_IN_animation_up;
+        FSMTreppe_DW.temporalCounter_i1 = 0U;
+
+        // Outport: '<Root>/anim_active'
+        FSMTreppe_Y.anim_active = 1U;
+        FSMTreppe_DW.got_sensor = 0U;
+        FSMTreppe_DW.got_anim_finished = 0U;
+        FSMTreppe_DW.finished_up = 0U;
+      }
+      break;
+    }
+  }
+
+  // End of Chart: '<Root>/FSMTreppe'
+}
+
+// Model initialize function
+void FSMTreppeModelClass::initialize()
+{
+  // (no initialization code required)
+}
+
+// Model terminate function
+void FSMTreppeModelClass::terminate()
+{
+  // (no terminate code required)
+}
+
+// Constructor
+FSMTreppeModelClass::FSMTreppeModelClass() :
+  FSMTreppe_DW(),
+  FSMTreppe_U(),
+  FSMTreppe_Y()
+{
+  // Currently there is no constructor body generated.
+}
+
+// Destructor
+FSMTreppeModelClass::~FSMTreppeModelClass()
+{
+  // Currently there is no destructor body generated.
+}
+
+//
+// File trailer for generated code.
+//
+// [EOF]
+//

lib/treppe/FSMTreppe/FSMTreppe.h

@@ -0,0 +1,120 @@
+//
+// Academic License - for use in teaching, academic research, and meeting
+// course requirements at degree granting institutions only.  Not for
+// government, commercial, or other organizational use.
+//
+// File: FSMTreppe.h
+//
+// Code generated for Simulink model 'FSMTreppe'.
+//
+// Model version                  : 1.22
+// Simulink Coder version         : 9.5 (R2021a) 14-Nov-2020
+// C/C++ source code generated on : Fri Jul  2 17:45:36 2021
+//
+// Target selection: ert.tlc
+// Embedded hardware selection: ARM Compatible->ARM Cortex-M
+// Code generation objectives: Unspecified
+// Validation result: Not run
+//
+#ifndef RTW_HEADER_FSMTreppe_h_
+#define RTW_HEADER_FSMTreppe_h_
+
+#include <stdint.h>
+
+// Class declaration for model FSMTreppe
+class FSMTreppeModelClass {
+  // public data and function members
+ public:
+  // Block states (default storage) for system '<Root>'
+  struct DW_FSMTreppe_T {
+    uint16_t temporalCounter_i1;       // '<Root>/FSMTreppe'
+    uint8_t is_active_c3_FSMTreppe;    // '<Root>/FSMTreppe'
+    uint8_t is_c3_FSMTreppe;           // '<Root>/FSMTreppe'
+    uint8_t got_anim_finished;         // '<Root>/FSMTreppe'
+    uint8_t finished_up;               // '<Root>/FSMTreppe'
+    uint8_t finished_dn;               // '<Root>/FSMTreppe'
+    uint8_t got_sensor;                // '<Root>/FSMTreppe'
+  };
+
+  // External inputs (root inport signals with default storage)
+  struct ExtU_FSMTreppe_T {
+    bool sensor_unten;            // '<Root>/sensor_unten'
+    bool sensor_oben;             // '<Root>/sensor_oben'
+    bool anim_finished;           // '<Root>/anim_finished'
+  };
+
+  // External outputs (root outports fed by signals with default storage)
+  struct ExtY_FSMTreppe_T {
+    uint8_t anim_active;               // '<Root>/anim_active'
+  };
+
+  // model initialize function
+  void initialize();
+
+  // model step function
+  void step();
+
+  // model terminate function
+  void terminate();
+
+  // Constructor
+  FSMTreppeModelClass();
+
+  // Destructor
+  ~FSMTreppeModelClass();
+
+  // Root-level structure-based inputs set method
+
+  // Root inports set method
+  void setExternalInputs(const ExtU_FSMTreppe_T* pExtU_FSMTreppe_T)
+  {
+    FSMTreppe_U = *pExtU_FSMTreppe_T;
+  }
+
+  // Root-level structure-based outputs get method
+
+  // Root outports get method
+  const FSMTreppeModelClass::ExtY_FSMTreppe_T & getExternalOutputs() const
+  {
+    return FSMTreppe_Y;
+  }
+
+  // private data and function members
+ private:
+  // Block states
+  DW_FSMTreppe_T FSMTreppe_DW;
+
+  // External inputs
+  ExtU_FSMTreppe_T FSMTreppe_U;
+
+  // External outputs
+  ExtY_FSMTreppe_T FSMTreppe_Y;
+};
+
+//-
+//  The generated code includes comments that allow you to trace directly
+//  back to the appropriate location in the model.  The basic format
+//  is <system>/block_name, where system is the system number (uniquely
+//  assigned by Simulink) and block_name is the name of the block.
+//
+//  Note that this particular code originates from a subsystem build,
+//  and has its own system numbers different from the parent model.
+//  Refer to the system hierarchy for this subsystem below, and use the
+//  MATLAB hilite_system command to trace the generated code back
+//  to the parent model.  For example,
+//
+//  hilite_system('FSM_Treppenlicht/FSMTreppe')    - opens subsystem FSM_Treppenlicht/FSMTreppe
+//  hilite_system('FSM_Treppenlicht/FSMTreppe/Kp') - opens and selects block Kp
+//
+//  Here is the system hierarchy for this model
+//
+//  '<Root>' : 'FSM_Treppenlicht'
+//  '<S1>'   : 'FSM_Treppenlicht/FSMTreppe'
+
+#endif                                 // RTW_HEADER_FSMTreppe_h_
+
+//
+// File trailer for generated code.
+//
+// [EOF]
+//

lib/treppe/treppe.cpp

@@ -0,0 +1,238 @@
+#include "treppe.h"
+
+uint8_t Treppe::softstart_led(uint8_t led, uint16_t startval, uint16_t stopval){
+    /*
+  softstart task
+
+  - get's called at regular intervals (1ms at the moment)
+  - dimms single led (0 - 15, PCA9685 outputs) with linear intervals vom startval to stopval
+  - calculates pwm steps depending on startval, stopval and timeinterval
+  - -> results in constanst speed
+  - returns 1 if led dimming is running
+  - returns 0 if led dimming is finished
+
+  */
+
+    static uint8_t lastled = 255;
+    static float current_pwm = 0;
+    static float stepsize = 1.0;
+    if(led != lastled){
+      pwmController.setChannelPWM(led, (uint16_t)startval);
+      lastled = led;
+      current_pwm = startval;
+      stepsize = INT_TIME*abs(stopval - startval)/(float)time_per_stair;      // only valid at 1ms function call interval
+      return 1;
+    }
+    
+    if(startval > stopval){
+      current_pwm -= stepsize;
+    }
+    else {
+      current_pwm += stepsize;
+    }
+    // Serial.println((uint16_t)current_pwm);
+    pwmController.setChannelPWM(led, (uint16_t)current_pwm);
+    if(current_pwm > stopval - stepsize && current_pwm < stopval + stepsize){
+      if(stopval == 0) pwmController.setChannelPWM(led, 0);
+      return 0;
+    } 
+    return 1;
+}
+
+void Treppe::ledsequence(){
+  static int8_t led = 0;
+  static uint16_t brightness = 0;
+  static uint16_t lastbrightness = 0;
+  static uint16_t status = 0;
+  uint16_t status_build = 0;
+  status_build |= direction << 8;
+  status_build |= state;
+  if(status_build != status){                 // check if any parameter changed
+    finish = 0;                               // set state unfinished -> start action
+    if(direction) led = 0;                    // reset led counter depending of direction
+    else          led = stairs-1;
+    if(state){
+      brightness = active_brightness;           // set brightness value depending of on/off
+      lastbrightness = idle_brightness;
+    }     
+    else{
+      brightness = idle_brightness;
+      lastbrightness = active_brightness;
+    }          
+    status = status_build;                    // set parameter memory
+
+    Serial.printf("----Status Changed! onoff: %d, dir: %d\n", state, direction);
+  }
+  if(!finish){                                // finish == 0 -> action pending
+    if(!softstart_led(led,lastbrightness, brightness)){
+      Serial.printf("one LED finished:  led: %d, last: %d, curr %d\n", 
+            led, lastbrightness, brightness);
+
+      if(direction){
+        led++;
+        if(led >= stairs)
+          finish = 1;
+      } 
+      else{
+          led--;
+          if(led < 0)
+            finish = 1;
+      }
+    }
+  }
+}
+
+void Treppe::rampe()
+{
+  if(state) {
+    finish = 0;
+    state = 0;// set parameter memory
+  }
+
+  if(!finish) {
+    if(direction) { // aufwärts
+      if(tick >= ticks_treppe-1) { // ziel erreicht
+        Serial.println("[Treppe] oberster tick !");
+        finish = 1;
+        return;
+      }
+      tick++;  // eins hoch
+    }
+    else {  // abwärts
+      if(tick <= 0) { // ziel erreicht
+        Serial.println("[Treppe] unterster tick !");
+        finish = 1;
+        return;
+      }
+      tick--;  // eins runter
+    }
+
+    stufe = tick / ticks_pro_stufe;
+
+    float new_pwm = 0.0;
+    if(an_aus) {
+      new_pwm = differenz_pwm_pro_tick * (tick - ticks_pro_stufe*stufe);
+      new_pwm += idle_brightness;
+      if(direction) new_pwm += differenz_pwm_pro_tick;
+    }
+    else {
+      new_pwm = active_brightness - differenz_pwm_pro_tick * (tick - ticks_pro_stufe*stufe);
+      new_pwm += idle_brightness;
+      if(direction) new_pwm -= differenz_pwm_pro_tick;
+    }
+
+    pwmController.setChannelPWM(stufe, (uint16_t) new_pwm);
+    Serial.printf("tick %04u, led %02d:%02u, pwm %4.1f\n", 
+      tick,
+      stufe,
+      (tick - ticks_pro_stufe*stufe), 
+      new_pwm
+    );
+  }
+}
+
+void Treppe::setup(){
+    Serial.printf("differenz_pwm_pro_tick %f\n", differenz_pwm_pro_tick);
+   
+    pwmController.resetDevices();
+    
+    // Deactive PCA9685 Phase Balancer due to LED Flickering
+    // https://github.com/NachtRaveVL/PCA9685-Arduino/issues/15
+    // see also lib/PCA9685-Arduin/PCA9685.h:204
+    pwmController.init(PCA9685_PhaseBalancer_None);
+    //pwmController.init(PCA9685_PhaseBalancer_Linear);
+    pwmController.setPWMFrequency(100);
+    pwmController.setAllChannelsPWM(idle_brightness);
+    
+    pinMode(A0, INPUT);
+    pinMode(SENSOR1, INPUT);
+    pinMode(SENSOR2, INPUT);
+    pinMode(OE, OUTPUT);
+    digitalWrite(OE, 0);
+    Serial.println("Hello from Treppe");
+    Serial.print("Treppe: initial parameters: stairs=");
+    Serial.println(stairs);
+}
+
+void Treppe::task(){
+  FSMTreppe_Obj.step();
+
+  if(finish){
+    direction = switch_direction;
+    state = switch_state;
+  }  
+  static uint8_t last_sensor_state[2] = {0,0}; 
+  uint8_t current_sensor_state[2] = {0,0};
+  current_sensor_state[0] = digitalRead(SENSOR1);
+  current_sensor_state[1] = digitalRead(SENSOR2);
+  
+  if(current_sensor_state[0] && !last_sensor_state[0] && state == 0){
+    setTick(0);
+    setAnAus(1);
+    setDirection(1);
+    setState(1);
+  }
+
+  if(current_sensor_state[1] && !last_sensor_state[1] && state == 0){
+    setTick(0);
+    setAnAus(0);
+    setDirection(0);
+    setState(1);
+  }
+
+  // first switch - off approach, use timer later
+  if(!current_sensor_state[0] && last_sensor_state[0] && state == 1){
+    setTick(ticks_treppe);
+    setAnAus(1);
+    setDirection(1);
+    setState(0);
+  }
+
+  if(!current_sensor_state[1] && last_sensor_state[1] && state == 1){
+    setTick(ticks_treppe);
+    setAnAus(1);
+    setDirection(0);
+    setState(0);
+  }
+
+  last_sensor_state[0] = current_sensor_state[0];
+  last_sensor_state[1] = current_sensor_state[1];
+  
+  ledsequence();
+  //Serial.printf("LDR: %f\n", ((float)analogRead(A0))/1023.*3.68);
+}
+
+
+uint16_t Treppe::setIdle(uint16_t _idle_brightness){
+    idle_brightness = _idle_brightness;
+    Serial.println("Treppe: idle brightness changed!");
+    return idle_brightness;
+}
+uint16_t Treppe::setActive(uint16_t _active_brightness){
+    active_brightness = _active_brightness;
+    Serial.println("Treppe: active brightness changed!");
+    return active_brightness;
+}
+uint16_t Treppe::setTime(uint16_t _time_per_stair){
+    time_per_stair = _time_per_stair;
+    Serial.println("Treppe: time changed!");
+    return time_per_stair;
+}
+
+void Treppe::setDirection(uint8_t _direction){
+    switch_direction = _direction;
+    Serial.printf("Treppe: switch_direction=%d!\n", switch_direction);
+    if(finish) Serial.println("apply direction request immediately");
+    else  Serial.println("currently active, dir change afterwards");
+    // to do: implement state command variable to determine dimm-state
+}
+
+void Treppe::setState(uint8_t _state){
+  if(state == _state) return;
+  else {
+    switch_state = _state;
+    Serial.printf("Treppe: switch_state=%d!\n", switch_state);
+    if(finish) Serial.println("apply state request immediately");
+    else Serial.println("currently active, state changes after activity");
+  }
+}

lib/treppe/treppe.h

@@ -0,0 +1,83 @@
+#pragma once
+
+#include "FSMTreppe/FSMTreppe.h"
+#include "PCA9685.h"
+
+#define SENSOR1 2
+#define SENSOR2 12
+#define OE 14
+
+#define INT_TIME 20  // interrupt intervall [ms]
+
+class Treppe {
+private:
+    // initialize with i2c-Address 0, use Wire Library
+    PCA9685 pwmController;     
+    FSMTreppeModelClass FSMTreppe_Obj;// Instance of model class
+
+    uint8_t stairs;
+    uint16_t time_per_stair = 300;          // dimmtime per stair [ms]
+    uint16_t idle_brightness = 100;
+    uint16_t active_brightness = 2048;
+
+    uint8_t direction = 0;
+    uint8_t switch_direction = 0;
+    uint8_t state = 0;
+    uint8_t switch_state = 0;
+    uint8_t finish = 1;
+
+    // alternative
+    uint32_t tick = 0;
+    uint32_t stufe = 0;
+    uint8_t an_aus = 0;
+
+    uint32_t ticks_treppe = 0;
+    uint32_t ticks_pro_stufe = 0;
+    float differenz_pwm_pro_tick = 0.0;
+    // alternative
+
+    uint8_t softstart_led(uint8_t led, uint16_t startval, uint16_t stopval);
+    void ledsequence();
+    void rampe();
+
+public:
+    Treppe(uint8_t _stairs) : stairs(_stairs){
+        FSMTreppe_Obj.initialize();
+
+        ticks_pro_stufe = time_per_stair / 20; // [ms]
+        ticks_treppe = ticks_pro_stufe * stairs;
+
+        differenz_pwm_pro_tick = (float) (active_brightness - idle_brightness) 
+                                            / (float) ticks_pro_stufe;
+    }
+    ~Treppe() {
+        FSMTreppe_Obj.terminate();
+    }
+
+    void setup();
+    void task();        // call periodically
+
+    // Parameter section
+    uint16_t setIdle(uint16_t _idle_brightness);
+    uint16_t setActive(uint16_t _active_brightness);
+    uint16_t setTime(uint16_t _time_per_stair);
+
+    void setTick(uint32_t _tick) {
+        tick = _tick;
+        Serial.printf("Treppe: Tick: %u!\n", tick);
+    }    
+    uint32_t getTicks() {
+        return ticks_treppe;
+    }
+
+    // Runtime Parameter section
+    void setDirection(uint8_t _direction);
+    void setState(uint8_t _state);
+    void setAnAus(uint8_t _an_aus) {
+        an_aus = _an_aus;
+    }
+
+    uint8_t getState() { return state;};
+    uint8_t getFinished() { return finish;};
+    uint8_t getDirection() {return direction;};
+};

scripts/gdboptions

@@ -0,0 +1,17 @@
+set remote hardware-breakpoint-limit 1
+set remote hardware-watchpoint-limit 1
+set remote interrupt-on-connect on
+set remote kill-packet off
+set remote symbol-lookup-packet off
+set remote verbose-resume-packet off
+mem 0x20000000 0x3fefffff ro cache
+mem 0x3ff00000 0x3fffffff rw
+mem 0x40000000 0x400fffff ro cache
+mem 0x40100000 0x4013ffff rw cache
+mem 0x40140000 0x5fffffff ro cache
+mem 0x60000000 0x60001fff rw
+set serial baud 460800
+
+file .pio/build/debug/firmware.elf
+target remote /dev/ttyUSB0
+thb loop 

src/main.cpp

@@ -1,194 +1,67 @@
 #include <Arduino.h>
-#include <Wire.h>
+
+#ifdef WITH_DEBUGGING_ON
+#include <GDBStub.h> // debugging support via GDBStub over UART
+#endif
 
 #include "PCA9685.h"
-#include <GDBStub.h>
+extern "C" { 
+  #include "user_interface.h" 
+}
+// OTA & WEB
+#include "wifi_credentials.h"
+#include "ota.h"
+#include "httpserver.h"
 
+// BOARD
 #define ESP12_LED 2
 #define NODEMCU_LED 16
 
-extern "C" {
+// PWM
-#include "user_interface.h"
+#include "treppe.h"
-}
+os_timer_t timer1;
-os_timer_t Timer1;         // Verwaltungsstruktur des Timers
+uint8_t timer_flag = 0;
+Treppe stairs(16);
 
-int c;
+// WIFI
-bool toggle = false;
+const char* ssid = STASSID;
-uint32_t m=0;
+const char* password = STAPSK;
 
-uint32_t dimmtimer = 0; 
+// port 80, root directory of server '/'
-uint8_t direction = 1;
+HTTPServer httpServer(80, "/");
-uint8_t onoff = 1;
 
+uint32_t _t=0;
+#define SP_US(_str,_a) Serial.print(_str); Serial.print(" took: "); Serial.print(_a); Serial.println("us")
+#define TIMEIF_US(_f, _l, _str) _t=micros(); _f; _t=micros()-_t; if(_t > _l) { SP_US(_str, _t); }
 
-void ledsequence(uint8_t direction, uint8_t onoff, uint8_t factor);
-uint8_t softstart_led(uint8_t led, uint16_t startval, uint16_t stopval, uint8_t factor);
 
 void timerCallback(void *pArg)
 {
   *((int *) pArg) += 1;
-  
+  stairs.task();
-  ledsequence(direction, onoff, 4);
-  // Serial.print("[");
-  // Serial.print(micros()-m);
-  // Serial.print("] timerCallback\n");
-  // m = micros();
 }
 
-// OTA & WEB
+// ===============================================
-#include "wifi_credentials.h"
+uint8_t inter = 0;
-#include <ESP8266WiFi.h>
+ICACHE_RAM_ATTR void int_test(){
-#include <WiFiUdp.h>
+  inter = 1;
-#include <ArduinoOTA.h>
-
-#include <ESP8266WebServer.h>
-#include <WiFiClient.h>
-
-#include "index.html.gz.h"
-#include "style.css.gz.h"
-#include "favicon.png.gz.h"
-// images are possible
-// maybe check out FS <- SPIFFS
-
-const char* ssid = STASSID;
-const char* password = STAPSK;
-
-void setup_webserver();
-void setup_ota();
-void setup_pwm_pca9685();
-void handleRootGz();
-void handleCssGz();
-void handleNotFound();
-
-const int led = 13;
-ESP8266WebServer server(80);
-PCA9685 pwmController;
-
-void handleRootGz() {
-    const char* dataType = "text/html";
-    server.sendHeader(F("Content-Encoding"), F("gzip"));
-    server.send(200, dataType, (const char*)index_html_gz, index_html_gz_len);
-}
-
-void handleCssGz() {
-    const char* dataType = "text/css";
-    server.sendHeader(F("Content-Encoding"), F("gzip"));
-    server.send(200, dataType, (const char*)style_css_gz, style_css_gz_len);
-}
-void handleFaviconGz() {
-    const char* dataType = "image/png";
-    server.sendHeader(F("Content-Encoding"), F("gzip"));
-    server.send(200, dataType, (const char*)favicon_png_gz, favicon_png_gz_len);
-}
-
-void handleNotFound() {
-  digitalWrite(led, 1);
-  String message = "File Not Found\n\n";
-  message += "URI: ";
-  message += server.uri();
-  message += "\nMethod: ";
-  message += (server.method() == HTTP_GET) ? "GET" : "POST";
-  message += "\nArguments: ";
-  message += server.args();
-  message += "\n";
-
-  for (uint8_t i = 0; i < server.args(); i++) {
-    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
-  }
-
-  server.send(404, "text/plain", message);
-  digitalWrite(led, 0);
-}
-
-
-void setup_webserver() {
-  pinMode(led, OUTPUT);
-  digitalWrite(led, 0);
-  Serial.println("");
-
-  // Wait for connection
-  while (WiFi.status() != WL_CONNECTED) {
-    delay(500);
-    Serial.print(".");
-  }
-
-  Serial.println("");
-  Serial.print("Connected to ");
-  Serial.println(ssid);
-  Serial.print("IP address: ");
-  Serial.println(WiFi.localIP());
-
-  server.on("/", handleRootGz);
-  server.on("/style.css", handleCssGz);
-  server.on("/favicon.png", handleFaviconGz);
-  server.onNotFound(handleNotFound);
-
-  server.begin();
-  Serial.println("HTTP server started");
-}
-
-void setup_ota() {
-  ArduinoOTA.setPort(8266);
-  ArduinoOTA.setHostname("ESP_Treppenlicht");
-  ArduinoOTA.setPassword("admin");
-  // Password can be set with it's md5 value as well
-  // MD5(admin) = 21232f297a57a5a743894a0e4a801fc3
-  // ArduinoOTA.setPasswordHash("21232f297a57a5a743894a0e4a801fc3");
-
-  ArduinoOTA.onStart([]() {
-    String type;
-    if (ArduinoOTA.getCommand() == U_FLASH) {
-      type = "sketch";
-    } else { // U_FS
-      type = "filesystem";
-    }
-
-    // NOTE: if updating FS this would be the place to unmount FS using FS.end()
-    Serial.println("Start updating " + type);
-  });
-  ArduinoOTA.onEnd([]() {
-    Serial.println("\nEnd");
-  });
-  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
-    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
-  });
-  ArduinoOTA.onError([](ota_error_t error) {
-    Serial.printf("Error[%u]: ", error);
-    if (error == OTA_AUTH_ERROR) {
-      Serial.println("Auth Failed");
-    } else if (error == OTA_BEGIN_ERROR) {
-      Serial.println("Begin Failed");
-    } else if (error == OTA_CONNECT_ERROR) {
-      Serial.println("Connect Failed");
-    } else if (error == OTA_RECEIVE_ERROR) {
-      Serial.println("Receive Failed");
-    } else if (error == OTA_END_ERROR) {
-      Serial.println("End Failed");
-    }
-  });
-  ArduinoOTA.begin();
-}
-
-void setup_pwm_pca9685() {
-  pwmController.resetDevices();       // Software resets all PCA9685 devices on Wire line
-
-  pwmController.init(B000000);        // Address pins A5-A0 set to B000000
-  pwmController.setPWMFrequency(200); // Default is 200Hz, supports 24Hz to 1526Hz
-
-  Serial.println(pwmController.getChannelPWM(0)); // Should output 2048, which is 128 << 4
 }
 
 void setup() {
+#ifdef WITH_DEBUGGING_ON
   Serial.begin(460800);
   gdbstub_init();
+#else
+  Serial.begin(76800);
+#endif
 
   Serial.println(F("Booting ...."));
 
-  pinMode(NODEMCU_LED, OUTPUT);
+  //pinMode(NODEMCU_LED, OUTPUT);
   pinMode(ESP12_LED, OUTPUT);
 
   Wire.begin();                       // Wire must be started first
-  Wire.setClock(400000);              // Supported baud rates are 100kHz, 400kHz, and 1000kHz
+  Wire.setClock(1000000);              // Supported baud rates are 100kHz, 400kHz, and 1000kHz
 
   WiFi.mode(WIFI_STA);
   WiFi.begin(ssid, password);
@@ -199,119 +72,52 @@ void setup() {
     ESP.restart();
   }
 
-  os_timer_setfn(&Timer1, timerCallback, &c);
+  Serial.println("");
-  os_timer_arm(&Timer1, 1, true);
+  Serial.print("Connected to ");
-
+  Serial.println(ssid);
-
-  Serial.println("Ready");
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
 
-  setup_ota();
+  ota_setup();
-  setup_webserver();
+
-  setup_pwm_pca9685();
+  httpServer.start();
+  httpServer.start_apps();
+
+  Serial.println("HTTP server started !");
+
+  stairs.setup();
+  Serial.println("PCA9685 connected !");
+  //attachInterrupt(digitalPinToInterrupt(2), int_test, RISING);
+  //attachInterrupt(digitalPinToInterrupt(12), int_test, RISING);
+
+  os_timer_setfn(&timer1, timerCallback, &timer_flag);
+  os_timer_arm(&timer1, 20, true);
 }
 
-uint32_t t;
+#include <random>
-#define SP_US(_str,_a) Serial.print(_str); Serial.print(" took: "); Serial.print(_a); Serial.println("µs")
-#define TIMEIF_US(_str,_f, _l) t=micros(); _f; t=micros()-t; if(t > _l) { SP_US(_str, t); }
-
-uint8_t softstart_led(uint8_t led, uint16_t startval, uint16_t stopval, uint8_t factor){
-    static uint8_t lastled = 255;
-    static uint8_t current_pwm = 0;
-    
-    if(led != lastled){
-      pwmController.setChannelPWM(led, startval);
-      lastled = led;
-      current_pwm = startval;
-      return 1;
-    }
-    
-    if(current_pwm == stopval){
-      return 0;
-    } 
-
-    else if(startval > stopval){
-      current_pwm -= 1;
-    }
-    else {
-      current_pwm += 1;
-    }
-    pwmController.setChannelPWM(led, current_pwm*factor);
-    return 1;
-}
-
-#define LEDCOUNT 16
-
-void ledsequence(uint8_t direction, uint8_t onoff, uint8_t factor){
-  static int8_t led = 0;
-  static uint8_t brightness = 0;
-  static uint8_t lastbrightness = 0;
-  static uint8_t finish = 1;
-  static uint32_t status = 0;
-  uint32_t status_build = 0;
-  status_build |= direction << 16;
-  status_build |= onoff << 8;
-  status_build |= factor;
-  if(status_build != status){                 // check if any parameter changed
-    finish = 0;                               // set state unfinished -> start action
-    if(direction) led = 0;                    // reset led counter depending of direction
-    else          led = LEDCOUNT-1;
-    if(onoff){
-      brightness = 127;           // set brightness value depending of on/off
-      lastbrightness = 0;
-    }     
-    else{
-      brightness = 0;
-      lastbrightness = 127;
-    }          
-    status = status_build;                    // set parameter memory
-    Serial.print("----Status Changed! onoff: ");
-    Serial.print(onoff);
-    Serial.print(" dir: ");
-    Serial.println(direction);
-
-  }
-  if(!finish){                                // finish == 0 -> action pending
-      if(!softstart_led(led,lastbrightness, brightness, factor)){
-        Serial.print("one LED finished, new set led: ");
-        Serial.print(led);
-        Serial.print(" last: ");
-        Serial.print(lastbrightness);
-        Serial.print(" curr: ");
-        Serial.println(brightness);
-        if(direction){
-          led++;
-          if(led >= LEDCOUNT) {
-            finish = 1;
-            //lastbrightness = brightness;
-            }
-        } 
-        else{
-           led--;
-           if(led < 0){
-             //lastbrightness = brightness;
-             finish = 1;
-            }
-        }
-      }
-  }
-}
 
+uint32_t c = 0;
 
 void loop() {
+  // if(stairs.getState() == 0) {
+  //   delay(1000);
+    
+  //   // uint32_t t = rand() % stairs.getTicks();
+  //   // uint32_t d = rand() % 2;
+    
+  //   // stairs.setTick(t);
+  //   // stairs.setDirection(d);
 
+  //   stairs.setDirection(!stairs.getDirection());
+  //   stairs.setState(1);
+  // }
+  if(inter){
+    Serial.printf("interrupt\n");
+    inter = 0;
+  }
+  if(c++%1000000 == 0)
+    httpServer.logt("[%d] starting :)\n", c);
   
-
+  TIMEIF_US(ArduinoOTA.handle(), 10000, "OTA");
-  if(millis() - dimmtimer > 2){
+  TIMEIF_US(httpServer.handleClient(), 10000, "HTTP");
-    //ledsequence(direction, onoff, 4);
-    dimmtimer = millis();
-  }
-  if(millis() > 25000 && onoff == 1 && direction == 1) onoff = 0;
-  if(millis() > 35000 && direction == 1){
-    onoff = 1;
-    direction = 0;    
-  }
-  TIMEIF_US("OTA", ArduinoOTA.handle(), 1000);
-  TIMEIF_US("HTTP", server.handleClient(), 1000);
 }

start_xtensa_gdb_stub.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+GDB_PATH=~/.arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.0-newlib4.0.0-gnu23-48f7b08/bin/xtensa-lx106-elf-gdb
+
+cd ..
+echo "Starting gdb"
+$GDB_PATH -x scripts/gdboptions

templ_platformio_ini

@@ -8,21 +8,77 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:esp01_1m]
+[platformio]
+description = ESP8266 Treppenlicht Steuerung
+default_envs = ota
+; test_dir = test
+data_dir = data_gz
+
+[env:hardware]
 platform = espressif8266
-board = esp01_1m
+board = nodemcuv2
 framework = arduino
+
+board_build.filesystem = littlefs
+board_build.ldscript = eagle.flash.4m1m.ld
+extra_scripts = pre:create_gz_files.py
 monitor_speed = 115200
 
-extra_scripts = pre:extra_script.py
+[env:serial]
+extends = env:hardware
+upload_protocol = esptool
+upload_speed = 921600
 
-; stuff for OTA 
+[env:ota]
-; https://docs.platformio.org/en/latest/platforms/espressif8266.html#over-the-air-ota-update
+extends = env:hardware
+; OTA => https://docs.platformio.org/en/latest/platforms/espressif8266.html#over-the-air-ota-update
 upload_protocol = espota
 upload_port = <!! IP ADDRESS !!>
 upload_flags =
   --port=8266
+  --host_port=<!! PORT !!>
   --auth=admin
 
-lib_deps =
+
-  ottowinter/PCA9685 16-Channel PWM Driver Module Library @ 1.2.9
+[env:debug]
+extends = env:hardware
+; look at doku.md
+build_flags = -DWITH_DEBUGGING_ON -Os -g3 -ggdb3
+upload_protocol = esptool
+upload_speed = 921600
+
+
+# This file is used compile and run tests located in the `unit` directory.
+# For more info, see:
+# https://docs.platformio.org/en/latest/plus/unit-testing.html
+# https://github.com/ThrowTheSwitch/Unity
+# https://github.com/ThrowTheSwitch/Unity/blob/master/docs/UnityAssertionsReference.md
+
+
+
+# To prepare coverage data for lcov, add ${coverage.build_flags} to env:test build flags
+# To actually generate coverage report:
+# $ `pio test` / run the test `program` manually
+# $ lcov --include (readlink -f ../espurna)'/*' --capture --directory .pio/build/test/ --output-file test.info
+# $ genhtml --ignore-errors source test.info --output-directory out
+
+[coverage]
+build_flags = -lgcov -fprofile-arcs -ftest-coverage
+
+[env:test]
+extends = env:hardware
+
+
+[env:native]
+platform = native
+test_build_project_src = true
+build_flags =
+    -DMANUFACTURER="PLATFORMIO"
+    -DDEVICE="TEST"
+    -std=gnu++11
+    -g
+    -Os
+    -I lib/treppe
+    -I lib/PCA9685-Arduino
+
+

test/test_main.cpp

@@ -0,0 +1,40 @@
+// #include <Arduino.h>
+// #include <unity.h>
+
+// String STR_TO_TEST;
+
+// // void setUp(void) {
+// //     // set stuff up here
+// //     STR_TO_TEST = "Hello, world!";
+// // }
+
+// // void tearDown(void) {
+// //     // clean stuff up here
+// //     STR_TO_TEST = "";
+// // }
+
+// void test_led_builtin_pin_number(void) {
+//     TEST_ASSERT_EQUAL(2, LED_BUILTIN);
+// }
+
+// void test_string_concat(void) {
+//     String hello = "Hello, ";
+//     String world = "world!";
+//     TEST_ASSERT_EQUAL_STRING(STR_TO_TEST.c_str(), (hello + world).c_str());
+// }
+
+
+// void setup()
+// {
+//     delay(2000); // service delay
+//     UNITY_BEGIN();
+
+//     RUN_TEST(test_led_builtin_pin_number);
+//     RUN_TEST(test_string_concat);
+
+//     UNITY_END(); // stop unit testing
+// }
+
+// void loop()
+// {
+// }

test/test_pwm.cpp

@@ -0,0 +1,47 @@
+// #include <Arduino.h>
+#include "treppe.h"
+#include <unity.h>
+
+Treppe stairs(10);
+
+void setUp(void) {
+  // run before each test
+  // set stuff up here
+  stairs.setup();
+  Serial.println("Treppe initialized !");
+  Serial.println("PCA9685 connected !");
+}
+
+void tearDown(void) {
+    // clean stuff up here
+}
+
+void test_set_state(void) {
+  stairs.setState(1);
+  TEST_ASSERT_EQUAL(1, stairs.getState());
+  stairs.setState(0);
+  TEST_ASSERT_EQUAL(0, stairs.getState());
+}
+
+
+void test_set_direction(void) {
+  stairs.setDirection(1);
+  TEST_ASSERT_EQUAL(1, stairs.getDirection());
+  stairs.setDirection(0);
+  TEST_ASSERT_EQUAL(0, stairs.getDirection());
+}
+
+void setup()
+{   
+    delay(2000); // service delay
+    UNITY_BEGIN();
+
+    RUN_TEST(test_set_state);
+    RUN_TEST(test_set_direction);
+
+    UNITY_END(); // stop unit testing
+}
+
+void loop()
+{
+}

webtest.cmd

@@ -1,2 +1,2 @@
-CD .\include\http
+CD .\data
 py.exe -m http.server

webtest.sh

@@ -0,0 +1,2 @@
+cd data
+python3 -m http.server