Merge branch 'master' of https://git.efi.th-nuernberg.de/gitea/schmidtsi76327/ESP8266_Treppenlicht

compress/favicon.png.gz.h

 // filename: favicon.png.gz.h
 #define favicon_png_gz_len 554
 const char favicon_png_gz[] = {
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compress/index.html.gz.h

 // filename: index.html.gz.h
-#define index_html_gz_len 428
+#define index_html_gz_len 388
 const char index_html_gz[] = {
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compress/input.js.gz.h

 // filename: input.js.gz.h
 #define input_js_gz_len 205
 const char input_js_gz[] = {
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compress/style.css.gz.h

 // filename: style.css.gz.h
-#define style_css_gz_len 948
+#define style_css_gz_len 1121
 const char style_css_gz[] = {
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- 0x2B, 0x20, 0x0F, 0x1A, 0x31, 0xF5, 0x95, 0xEC, 0x3E, 0x09, 
- 0x4D, 0xAA, 0xDE, 0xAF, 0x68, 0x07, 0x83, 0x9A, 0x4A, 0x4D, 
- 0x2A, 0xF5, 0xB4, 0x9A, 0x97, 0x9E, 0x74, 0x69, 0xC2, 0x39, 
- 0xB2, 0x45, 0x53, 0xA6, 0xDF, 0xD3, 0xF2, 0x29, 0x29, 0xBB, 
- 0xF8, 0xFF, 0x41, 0xC4, 0x7E, 0x97, 0x76, 0x4D, 0x67, 0x60, 
- 0x82, 0x52, 0xF9, 0x84, 0x80, 0x53, 0xEA, 0x3E, 0x7A, 0x8E, 
- 0x4C, 0x5F, 0x53, 0x78, 0x37, 0x31, 0x7E, 0x75, 0xC0, 0x47, 
- 0x89, 0x25, 0xAD, 0xFB, 0x53, 0xD2, 0x6E, 0xB7, 0x5F, 0x2B, 
- 0x6D, 0xAC, 0xE6, 0xDA, 0x9E, 0xFE, 0xD5, 0x39, 0xD3, 0x3B, 
- 0x7F, 0x37, 0x96, 0xD4, 0xCB, 0x8C, 0x5F, 0xD7, 0x1B, 0x7F, 
- 0x33, 0xE4, 0xF6, 0xE7, 0xB0, 0xF1, 0xC3, 0x20, 0xFE, 0x03, 
- 0xF9, 0xD5, 0xDB, 0xFC, 0xD4, 0x0A, 0x00, 0x00};
+ 0x1F, 0x8B, 0x08, 0x00, 0x68, 0x4A, 0xD3, 0x60, 0x02, 0xFF, 
+ 0xBD, 0x56, 0x4D, 0x6F, 0xDB, 0x46, 0x10, 0xBD, 0x1B, 0xF0, 
+ 0x7F, 0x98, 0x26, 0x08, 0x60, 0xA5, 0xA2, 0x43, 0xC9, 0xB2, 
+ 0xAD, 0xD0, 0xE8, 0xC1, 0x70, 0x93, 0xF8, 0xD0, 0x20, 0x40, 
+ 0xED, 0x43, 0x81, 0xA2, 0x87, 0x25, 0x39, 0x14, 0x17, 0x5E, 
+ 0x72, 0x89, 0xDD, 0xA5, 0x25, 0xD9, 0xF0, 0x7F, 0xEF, 0x7E, 
+ 0x91, 0x22, 0x29, 0xCA, 0x2E, 0x0A, 0xB4, 0x26, 0x60, 0x48, 
+ 0xB3, 0xF3, 0xF1, 0xDE, 0xEC, 0x9B, 0x11, 0x73, 0x55, 0x30, 
+ 0x78, 0x3E, 0x3E, 0x02, 0xC8, 0x78, 0xA9, 0x02, 0x49, 0x9F, 
+ 0x30, 0x82, 0xD9, 0x45, 0xB5, 0xB9, 0x6A, 0x6D, 0x19, 0x29, 
+ 0x28, 0xDB, 0x46, 0x20, 0x49, 0x29, 0x03, 0x89, 0x82, 0x66, 
+ 0x53, 0xB8, 0x16, 0x94, 0xB0, 0x29, 0xDC, 0x22, 0x7B, 0x44, 
+ 0x45, 0x13, 0x62, 0xBD, 0x63, 0x92, 0x3C, 0xAC, 0x04, 0xAF, 
+ 0xCB, 0x34, 0x48, 0x38, 0xE3, 0x22, 0x82, 0xF7, 0xE9, 0xC2, 
+ 0x3C, 0xFA, 0xF4, 0xE5, 0xF8, 0xE8, 0xF8, 0xE8, 0x54, 0xF1, 
+ 0x2A, 0x26, 0xC2, 0xD5, 0xAB, 0x48, 0x9A, 0xD2, 0x72, 0xA5, 
+ 0xAB, 0x61, 0x71, 0x28, 0x7C, 0x96, 0x99, 0xE7, 0xCA, 0xC4, 
+ 0x02, 0x78, 0xE3, 0x3A, 0xA7, 0x0A, 0xAF, 0x06, 0x88, 0x37, 
+ 0x01, 0x23, 0x62, 0xE5, 0xCC, 0x0A, 0x37, 0x2A, 0x20, 0x8C, 
+ 0xAE, 0xCA, 0x08, 0x12, 0x2C, 0x15, 0x8A, 0xB6, 0x7E, 0xA2, 
+ 0x23, 0x04, 0x67, 0xA3, 0x00, 0x9C, 0x47, 0x8D, 0x31, 0x0A, 
+ 0x99, 0xE4, 0x9A, 0xA5, 0x7A, 0xEE, 0x54, 0x7D, 0x9F, 0xD9, 
+ 0xBF, 0x61, 0xDD, 0xF3, 0xD0, 0x77, 0x6A, 0x4D, 0x53, 0x95, 
+ 0x47, 0xB0, 0x08, 0x3F, 0x1C, 0xE2, 0x72, 0x9E, 0x99, 0x67, 
+ 0xD7, 0x0A, 0x94, 0x4A, 0xE0, 0x8A, 0xA1, 0xB0, 0x65, 0x82, 
+ 0x35, 0xC6, 0x0F, 0x54, 0xE3, 0xAE, 0x2A, 0x24, 0x82, 0x94, 
+ 0x89, 0x4E, 0x5E, 0xF2, 0xD2, 0x31, 0xCA, 0x91, 0xAE, 0x72, 
+ 0x15, 0xC1, 0x7C, 0x50, 0xED, 0xF3, 0xD2, 0x57, 0xE3, 0x22, 
+ 0x45, 0x11, 0x08, 0x92, 0xD2, 0x5A, 0x76, 0xDC, 0x78, 0xAD, 
+ 0x18, 0x2D, 0x75, 0xA6, 0x98, 0x69, 0x3C, 0x07, 0x80, 0x89, 
+ 0x55, 0x7C, 0x32, 0xBB, 0xBC, 0x98, 0xC2, 0x6C, 0xB9, 0x9C, 
+ 0xC2, 0x7C, 0xBE, 0x9C, 0x38, 0x8C, 0x1D, 0x84, 0x51, 0xD4, 
+ 0xC0, 0x93, 0x8C, 0x9A, 0x4A, 0x2A, 0xAF, 0x8B, 0xF8, 0x6D, 
+ 0xDC, 0xA3, 0x46, 0x8F, 0xFD, 0xFC, 0xC3, 0x38, 0xB5, 0x01, 
+ 0x97, 0x59, 0x6B, 0x1F, 0x07, 0x1E, 0x5E, 0x6A, 0xE0, 0xF3, 
+ 0xB9, 0xFE, 0xF7, 0x79, 0x3E, 0xB1, 0x8E, 0x49, 0x2D, 0xA4, 
+ 0x3E, 0xAE, 0x38, 0xDD, 0x5D, 0x3D, 0x2D, 0xAB, 0x5A, 0xFD, 
+ 0xA9, 0xB6, 0x15, 0xFE, 0xA2, 0xE1, 0xAC, 0xF0, 0xAF, 0x7F, 
+ 0xCB, 0xC8, 0xA1, 0x8B, 0xF6, 0x6E, 0x66, 0x16, 0x0E, 0xAE, 
+ 0x66, 0x67, 0xD8, 0x01, 0x8F, 0x56, 0x9C, 0xA5, 0x58, 0x0A, 
+ 0x9E, 0xDA, 0x83, 0x42, 0x2B, 0x96, 0x96, 0x81, 0x9E, 0x89, 
+ 0x08, 0x82, 0xD9, 0xF9, 0x38, 0x7F, 0xFE, 0x13, 0x2D, 0x2A, 
+ 0x2E, 0x14, 0x29, 0x95, 0x1D, 0x03, 0x27, 0x9E, 0x07, 0x5E, 
+ 0x65, 0x4F, 0x48, 0x19, 0xF6, 0x24, 0xDA, 0x4E, 0xCB, 0xAB, 
+ 0x12, 0xD5, 0xC8, 0x0E, 0x6A, 0x74, 0x99, 0x2E, 0xC9, 0x92, 
+ 0x34, 0x85, 0xAA, 0x29, 0x30, 0x7A, 0x78, 0x39, 0x18, 0x69, 
+ 0x05, 0xED, 0xFD, 0x39, 0x13, 0x2A, 0xDD, 0xF3, 0x40, 0x56, 
+ 0x24, 0x71, 0x93, 0x65, 0x5D, 0x2D, 0xE6, 0xE3, 0xA3, 0x98, 
+ 0xA7, 0x5B, 0x97, 0xCD, 0x31, 0x8F, 0x20, 0x04, 0x52, 0x2B, 
+ 0xDE, 0x6D, 0xEC, 0xB0, 0xD3, 0x6D, 0x1F, 0xCE, 0x76, 0x79, 
+ 0x8E, 0x8F, 0x3E, 0x7D, 0x84, 0xFB, 0x1C, 0x41, 0xAE, 0xA9, 
+ 0x4A, 0x72, 0x08, 0x40, 0xE9, 0x2F, 0x31, 0xDF, 0x00, 0xB1, 
+ 0x6C, 0xEC, 0x57, 0x77, 0xAD, 0xF0, 0xF1, 0x93, 0xEE, 0x96, 
+ 0xF7, 0x73, 0x43, 0xCF, 0x25, 0x55, 0x94, 0xEB, 0xE2, 0x02, 
+ 0x19, 0x51, 0xF4, 0xD1, 0x55, 0x4B, 0xA9, 0xAC, 0x18, 0xD1, 
+ 0x4B, 0x8E, 0x96, 0x96, 0x56, 0xCC, 0xB8, 0x1F, 0x18, 0xDF, 
+ 0xB5, 0x8B, 0xA6, 0x8B, 0x0D, 0xE1, 0xB3, 0xC5, 0x8E, 0x9B, 
+ 0xC6, 0x73, 0xAB, 0xCB, 0x41, 0x8A, 0x19, 0xA9, 0x99, 0x82, 
+ 0xDB, 0xFB, 0xEF, 0xBF, 0x41, 0x92, 0x63, 0xF2, 0x60, 0x50, 
+ 0x75, 0x31, 0x58, 0x21, 0x3A, 0x24, 0xDC, 0x34, 0x49, 0xE9, 
+ 0x92, 0x61, 0xB7, 0x4E, 0xD8, 0x2B, 0x12, 0x76, 0x2A, 0xDC, 
+ 0x0F, 0x59, 0xB9, 0xCF, 0xCF, 0xFB, 0x57, 0xEB, 0x23, 0xBC, 
+ 0x47, 0x14, 0x63, 0xC6, 0x05, 0x0E, 0xE9, 0x93, 0x58, 0x72, 
+ 0x56, 0xFB, 0x4D, 0x6A, 0xF6, 0xA2, 0xDE, 0x94, 0x11, 0xBC, 
+ 0x7B, 0xD7, 0x9F, 0xCA, 0x8B, 0xBE, 0x76, 0xDA, 0xEF, 0x0C, 
+ 0x33, 0x7D, 0xBC, 0x68, 0x35, 0xAB, 0x14, 0x2F, 0x3A, 0xDF, 
+ 0xF7, 0x94, 0xB5, 0x5B, 0xDA, 0xCD, 0x78, 0x29, 0x3D, 0x5A, 
+ 0x0D, 0x96, 0xD3, 0x85, 0x74, 0x9B, 0x7B, 0xCF, 0xF6, 0x62, 
+ 0xA8, 0xFA, 0xF9, 0x8D, 0x6C, 0x47, 0x31, 0x85, 0x9F, 0xA1, 
+ 0x47, 0x7E, 0x44, 0xC7, 0xE1, 0xE2, 0xFA, 0xFA, 0xE2, 0xD7, 
+ 0xA6, 0x15, 0x2E, 0x3A, 0xE3, 0x49, 0x2D, 0xF7, 0x62, 0xF9, 
+ 0x26, 0x90, 0x39, 0x49, 0xF9, 0xDA, 0xA8, 0x31, 0x34, 0x82, 
+ 0x1D, 0x8F, 0xDE, 0xAB, 0xDD, 0x6B, 0x6B, 0x8F, 0x94, 0x36, 
+ 0xEB, 0x5E, 0xD8, 0x8F, 0x5A, 0x61, 0xF8, 0xC7, 0x89, 0xE9, 
+ 0x9A, 0xDB, 0x4D, 0x41, 0x21, 0xDF, 0xF4, 0x79, 0xFD, 0xFC, 
+ 0xC5, 0x6A, 0xE1, 0x77, 0xC3, 0x56, 0xA3, 0x71, 0x50, 0x64, 
+ 0x57, 0x10, 0xA7, 0x6E, 0x06, 0x9E, 0xC7, 0x66, 0xA8, 0x95, 
+ 0x6C, 0xCF, 0xB7, 0xC7, 0x64, 0x10, 0x72, 0xBE, 0x13, 0xD4, 
+ 0x50, 0x84, 0x54, 0x49, 0x64, 0x99, 0x2B, 0x6D, 0x97, 0x6A, 
+ 0xB7, 0xAF, 0x07, 0x97, 0x28, 0x80, 0xCE, 0xF2, 0xE3, 0x11, 
+ 0x85, 0xE8, 0x0E, 0xCC, 0xCD, 0xDD, 0x1D, 0x48, 0xB5, 0x65, 
+ 0xE8, 0xA8, 0xBC, 0xF1, 0xCB, 0xA1, 0x31, 0x99, 0x2C, 0x5F, 
+ 0x6B, 0xC6, 0x02, 0x6B, 0xF3, 0x41, 0xBD, 0xD1, 0x34, 0x1E, 
+ 0x77, 0x15, 0x26, 0x34, 0xA3, 0xBA, 0x51, 0xEE, 0xC8, 0xFB, 
+ 0x8D, 0xB5, 0xC5, 0xB8, 0x5B, 0x16, 0xE0, 0xFA, 0x97, 0x70, 
+ 0x51, 0x36, 0x9D, 0xED, 0xED, 0x70, 0xFD, 0x4E, 0x73, 0x66, 
+ 0x1E, 0x1B, 0xF1, 0x4D, 0xE0, 0xB6, 0x73, 0xE8, 0xBD, 0xDB, 
+ 0x9F, 0x5D, 0xC7, 0xD8, 0xDC, 0x17, 0x16, 0xFC, 0x11, 0x9B, 
+ 0x83, 0xC6, 0xAD, 0x5D, 0x00, 0xA7, 0x97, 0x0E, 0x2E, 0x2A, 
+ 0x77, 0xE5, 0x15, 0x11, 0x58, 0x26, 0x5B, 0x38, 0xD1, 0xF7, 
+ 0x02, 0x05, 0xAF, 0x25, 0x06, 0x3A, 0x5C, 0x00, 0x66, 0x19, 
+ 0x26, 0x4A, 0x02, 0x2F, 0x21, 0x37, 0x86, 0x89, 0xCF, 0x34, 
+ 0x3A, 0x53, 0x73, 0x69, 0x93, 0x86, 0xA7, 0x73, 0x90, 0xA8, 
+ 0x07, 0x3C, 0x95, 0x9D, 0xF9, 0x6A, 0x53, 0xF8, 0x0C, 0xDD, 
+ 0x48, 0x8F, 0xCB, 0x66, 0xF0, 0xBF, 0x04, 0x3A, 0xCF, 0xF7, 
+ 0x7D, 0x18, 0xC3, 0xAB, 0x8F, 0x5C, 0xC6, 0xFE, 0x76, 0x9B, 
+ 0xB5, 0x77, 0xB5, 0x05, 0x99, 0xF3, 0xB5, 0x2D, 0xDD, 0xE1, 
+ 0x64, 0x92, 0xBC, 0x0C, 0xB5, 0x95, 0x93, 0x32, 0x65, 0x08, 
+ 0x27, 0xDA, 0xAB, 0x25, 0x07, 0x27, 0x37, 0xB9, 0xE0, 0x05, 
+ 0x4E, 0xE1, 0x47, 0x85, 0x82, 0x4C, 0xE1, 0x8E, 0x64, 0x44, 
+ 0xD0, 0x29, 0x7C, 0x49, 0x57, 0x38, 0x01, 0x1D, 0xA1, 0xC7, 
+ 0x8B, 0x3F, 0x69, 0xBF, 0xAF, 0x54, 0x68, 0x45, 0x6F, 0x26, 
+ 0xA0, 0x38, 0xF0, 0xA1, 0xD4, 0x18, 0xE7, 0x0F, 0x93, 0x7D, 
+ 0xE8, 0xA3, 0xEF, 0x03, 0x6F, 0x69, 0x79, 0x4C, 0xCA, 0x26, 
+ 0xFF, 0x3F, 0x10, 0xB1, 0xDD, 0xA4, 0xCD, 0xA5, 0x13, 0x90, 
+ 0x4E, 0xA9, 0xC9, 0xA0, 0x01, 0x63, 0xEA, 0xDE, 0x45, 0xF6, 
+ 0x5C, 0x5F, 0x53, 0x78, 0x33, 0x31, 0x76, 0x6D, 0xC0, 0x17, 
+ 0x86, 0x85, 0x5E, 0xF6, 0x63, 0xD2, 0xF6, 0x9B, 0xCF, 0x4B, 
+ 0x1B, 0xCB, 0x7D, 0x6D, 0xFB, 0xB7, 0x2B, 0x68, 0x5E, 0xAF, 
+ 0x8C, 0xEB, 0x8D, 0xB5, 0xF5, 0x25, 0xF5, 0xB2, 0xD7, 0x5F, 
+ 0x73, 0x37, 0xD6, 0xD2, 0xED, 0xED, 0xFF, 0xD3, 0x8D, 0xFF, 
+ 0x8C, 0xE2, 0xDF, 0xDC, 0xC7, 0xFB, 0xE9, 0x3E, 0x0D, 0x00, 
+ 0x00};

doku.md

 }
 else
     server.streamFile(f, mime::getContentType(SRH::_path), requestMethod);
-```
+```
+
+
+Webserver on v0.3.0 now working with LittleFS
+TODO:
+- check dir for files automatic
+- move handleNotFound to httpserver.h
+- maybe compress files ?
+

include/ota.h

+#ifndef __OTA_H
+#define __OTA_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();
+
+}
+
+
+#endif // __OTA_H

src/main.cpp

 #include <Arduino.h>
 
-// debugging support via GDBStub over UART
 #ifdef WITH_DEBUGGING_ON
-#include <GDBStub.h>
+#include <GDBStub.h> // debugging support via GDBStub over UART
 #endif
 
 #include "PCA9685.h"
-extern "C" {
-#include "user_interface.h"
+extern "C" { 
+  #include "user_interface.h" 
 }
-
-#define ESP12_LED 2
-#define NODEMCU_LED 16
-
 // OTA & WEB
-#include "wifi_credentials.h"
 #include <ESP8266WiFi.h>
 #include <WiFiUdp.h>
 #include <ArduinoOTA.h>
+#include "ota.h"
 
+#include "wifi_credentials.h"
 #include "httpserver.h"
 
-const char* ssid = STASSID;
-const char* password = STAPSK;
+// BOARD
+#define ESP12_LED 2
+#define NODEMCU_LED 16
 
+// PWM
 os_timer_t timer1;
-int timer_arg;
+uint8_t timer_flag = 0;
+PCA9685 pwmController;
 
-void setup_ota();
 void setup_pwm_pca9685();
-void handleNotFound();
 
-const int led = 13;
+// WIFI
+const char* ssid = STASSID;
+const char* password = STAPSK;
 
+// PWM
+uint32_t dimmtimer = 0; 
+uint16_t time_per_stair = 500;    // global parameter: dimmtime per stair [ms]
+uint8_t direction = 1;
+uint8_t onoff = 1;
+
+
+void ledsequence(uint8_t direction, uint8_t onoff);
+uint8_t softstart_led(uint8_t led, uint16_t startval, uint16_t stopval);
+
+void timerCallback(void *pArg)
+{
+  *((int *) pArg) += 1;
+  
+  ledsequence(direction, onoff);
+  // Serial.print("[");
+  // Serial.print(micros()-m);
+  // Serial.print("] timerCallback\n");
+  // m = micros();
+}
+
+// HTTP
+void handleNotFound();
 HTTPServer httpServer(80, "/");
 
+// ===============================================
+
+
 void handleNotFound() {
   String message = "File Not Found\n\n";
   message += "URI: ";
   httpServer.send(404, "text/plain", message);
 }
 
-PCA9685 pwmController;
-
-
-
-
-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
 
 }
 
 
-uint32_t dimmtimer = 0; 
-uint8_t direction = 1;
-uint8_t onoff = 1;
-
-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);
-
-uint8_t flag = 0;
-void timer_callback(void *pArg)
-{
-  *((int *) pArg) += 1;
-  
-  flag = 1;
-}
-
-
 void setup() {
 #ifdef WITH_DEBUGGING_ON
   Serial.begin(460800);
 
   Serial.println(F("Booting ...."));
 
-
   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);
     ESP.restart();
   }
 
-  pinMode(led, OUTPUT);
-  digitalWrite(led, 0);
   Serial.println("");
   Serial.print("Connected to ");
   Serial.println(ssid);
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
 
-  os_timer_setfn(&timer1, timer_callback, &timer_arg);
-  os_timer_arm(&timer1, 1, true);
+  os_timer_setfn(&timer1, timerCallback, &timer_flag);
+  os_timer_arm(&timer1, 20, true);
 
   Serial.println("Ready");
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
 
-  setup_ota();
+  ota_setup();
 
   httpServer.start();
   httpServer.onNotFound(handleNotFound);
   Serial.println("PCA9685 connected !");
 }
 
-uint8_t softstart_led(uint8_t led, uint16_t startval, uint16_t stopval, uint8_t factor){
+uint32_t t;
+#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){
+
+  /*
+  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 uint8_t current_pwm = 0;
-    
+    static float current_pwm = 0;
+    static float stepsize = 1.0;
     if(led != lastled){
-      pwmController.setChannelPWM(led, startval);
+      pwmController.setChannelPWM(led, (uint16_t)startval);
       lastled = led;
       current_pwm = startval;
+      stepsize = 20*abs(stopval - startval)/(float)time_per_stair;      // only valid at 1ms function call interval
       return 1;
     }
     
-    if(current_pwm == stopval){
-      return 0;
-    } 
-
-    else if(startval > stopval){
-      current_pwm -= 1;
+    if(current_pwm > stopval - stepsize && current_pwm < stopval + stepsize) return 0;
+    // todo: duty cycle zero!
+    if(startval > stopval){
+      current_pwm -= stepsize;
     }
     else {
-      current_pwm += 1;
+      current_pwm += stepsize;
     }
-    pwmController.setChannelPWM(led, current_pwm*factor);
+    Serial.println((uint16_t)current_pwm);
+    pwmController.setChannelPWM(led, (uint16_t)current_pwm);
     return 1;
 }
 
 #define LEDCOUNT 16
 
-void ledsequence(uint8_t direction, uint8_t onoff, uint8_t factor){
+void ledsequence(uint8_t direction, uint8_t onoff){
   static int8_t led = 0;
-  static uint8_t brightness = 0;
-  static uint8_t lastbrightness = 0;
+  static uint16_t brightness = 0;
+  static uint16_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;
+  static uint16_t status = 0;
+  uint16_t status_build = 0;
+  status_build |= direction << 8;
+  status_build |= onoff;
   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;
+      brightness = 2048;           // set brightness value depending of on/off
+      lastbrightness = 200;
     }     
     else{
-      brightness = 0;
-      lastbrightness = 127;
+      brightness = 200;
+      lastbrightness = 2048;
     }          
     status = status_build;                    // set parameter memory
     Serial.print("----Status Changed! onoff: ");
 
   }
   if(!finish){                                // finish == 0 -> action pending
-      if(!softstart_led(led,lastbrightness, brightness, factor)){
-        Serial.print("one LED finished, new set led: ");
+      if(!softstart_led(led,lastbrightness, brightness)){
+        Serial.print("one LED finished: ");
         Serial.print(led);
         Serial.print(" last: ");
         Serial.print(lastbrightness);
 #define TIMEIF_US(_f, _l, _str) _t=micros(); _f; _t=micros()-_t; if(_t > _l) { SP_US(_str, _t); }
 
 void loop() {
-  if(millis() - dimmtimer > 2){
-    //ledsequence(direction, onoff, 4);
-    dimmtimer = millis();
-  }
+
+  
   if(millis() > 25000 && onoff == 1 && direction == 1) onoff = 0;
-  if(millis() > 35000 && direction == 1){
+  if(millis() > 45000 && direction == 1){
     onoff = 1;
     direction = 0;
   }
   TIMEIF_US(ArduinoOTA.handle(), 1000, "OTA");
   TIMEIF_US(httpServer.handleClient(), 1000, "HTTP");
 
-  if(flag) {
-    flag = 0;
-    ledsequence(direction, onoff, 4);
-    //Serial.printf("[%lu] interrupt\n\r", millis());
-  }
 }