got parameter fetch working beta only

data/index.html

@@ -49,7 +49,7 @@
   </div>
 
   <div class="param_block">
-    LDR Schwelle [%]: <output id="out_ldr_shw" class="val_range">50</output> %
+    LDR Schwelle [lx]: <output id="out_ldr_shw" class="val_range">50</output> lx
     <div class="slider">
       <input type="range" class="regler" id="range_ldr_shw" data-output="out_ldr_shw" min="0" max="100" value="50">
     </div>

data/input.js

@@ -34,7 +34,7 @@ function reloadTerminal() {
   const terminal = document.querySelector("#term");
   const autoscroll = document.querySelector("#scroll");
 
-  fetch(`/terminal`, {
+  fetch('/terminal', {
     method: 'POST',
     headers: {
       'Content-Type': 'application/x-www-form-urlencoded',
@@ -52,15 +52,47 @@ function reloadTerminal() {
   .catch(error => console.log('Error:', error));
 };
 
+function updateParameters() {
+  fetch('/parameters', {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/x-www-form-urlencoded',
+    },
+    body: ''
+  })
+  .then(response => response.json())
+  .then(json_str => {
+    const active_pwm = Math.round(json_str.active_pwm / 4095 * 100);
+    document.querySelector('#range_act_pwm').value = active_pwm;
+    document.querySelector('#out_act_pwm').value = active_pwm;
+    
+    const idle_pwm_max = Math.round(json_str.idle_pwm_max / json_str.active_pwm * 100);
+    document.querySelector('#range_idl_pwm').value = idle_pwm_max;
+    document.querySelector('#out_idl_pwm').value = idle_pwm_max;
+
+    document.querySelector('#range_tim_sta').value = json_str.time_per_stair;
+    document.querySelector('#out_tim_sta').value = json_str.time_per_stair;
+
+    document.querySelector('#range_tim_ldr').value = json_str.time_ldr;
+    document.querySelector('#out_tim_ldr').value = json_str.time_ldr;
+
+    document.querySelector('#range_ldr_shw').value = json_str.ldr_schwelle;
+    document.querySelector('#out_ldr_shw').value = json_str.ldr_schwelle;
+
+  })
+  .catch(error => console.log('Error:', error));
+};
+
 document.addEventListener('DOMContentLoaded', () => {
   setInterval(reloadTerminal, 1000);
   setInterval(reloadRangeValues, 1000);
 
+  updateParameters();
 
   // use data- attributes for action
   document.querySelectorAll('.control').forEach((button) => {
     button.onclick = () => {
-      fetch(`/action`, {
+      fetch('/action', {
         method: 'POST',
         headers: {
           'Content-Type': 'application/x-www-form-urlencoded',

lib/httpserver/httpserver.cpp

@@ -76,7 +76,7 @@ void HTTPServer::start_apps() {
           logt("set_time_ldr = %d\n", arg(i).toInt());
         }
         else if (argName(i).equals("range_ldr_shw")) {
-          treppe->set_ldr_schwelle(arg(i).toInt(), VORGABE_PROZENT);
+          treppe->set_ldr_schwelle(arg(i).toInt(), VORGABE_12BIT);
           logt("set_ldr_schwelle = %d %\n", arg(i).toInt());
         }
 
@@ -94,6 +94,14 @@ void HTTPServer::start_apps() {
       send(202, "text/plain", "");
     }
   });
+
+  this->on("/parameters", HTTP_POST, [this]() {
+    logt("got /parameters\n");
+    char json_str[255];
+    treppe->param_to_json(json_str, 255);
+    logt("%s\n", json_str);
+    send(200, "application/json", json_str);
+  });
 }
 
 template <class... Args>

lib/treppe/treppe.cpp

@@ -172,8 +172,14 @@ float Treppe::read_ldr() {
   E(LDR) = 6526.5 / (R(LDR)^2)
   ldr_value = E(LDR)
   */
-  float ldr_ohm = 37280.00 / analogRead(A0);
+  // float ldr_ohm = 37280.00 / analogRead(A0);
+  float voltage = analogRead(A0) * 0.0036;
+  float ldr_ohm = 40.57 * (3.3 - voltage) / voltage;
   float ldr_value = 6526.6 / (ldr_ohm * ldr_ohm);
+#ifdef LDRDEBUG
+  Serial.printf("Ohm: %f lux: %f Comp: %d\n", ldr_ohm, ldr_value,
+                param.ldr_schwelle);
+#endif
   return ldr_value;
 }
 
@@ -181,8 +187,7 @@ bool Treppe::check_ldr() {
   static uint8_t active = 0;
 
 #ifdef LDRDEBUG
-  Serial.printf("R(LDR) = %f kOhm  %f lux\n", ldr_value, lux);
+  // return true;
-  return true;
 #endif
 
   // follow up: averaging over many samples?
@@ -267,11 +272,15 @@ void Treppe::task() {
     if (!fsm_pend.anim_beendet) {
       fsm_pend.anim_beendet = dimmer_tick(&dimmer_ldr, DIM_LDR);
     }
+  }
 
+  if (fsm_outputs.status == ST_RUHEZUSTAND ||
+      fsm_outputs.status == ST_INAKTIV_LDR) {
     if (param_changed) {
       param_changed = false;
       param = param_pend;
       save_param_to_eeprom();
+      Serial.printf("Parameter Change applied!\n");
     }
   }
 
@@ -373,9 +382,20 @@ void Treppe::set_ldr_schwelle(const uint16_t value,
     // ?!
     param_pend.ldr_schwelle = 10 * value / 100;
   } else if (vorgabe_typ == VORGABE_12BIT) {
-    // param_pend.ldr_schwelle = value;
+    param_pend.ldr_schwelle = value;
   }
   param_changed = true;
 
   Serial.printf("Treppe: ldr_schwelle=%d\n", param_pend.ldr_schwelle);
 }
+
+void Treppe::param_to_json(char *json_str, size_t sz) {
+  snprintf(json_str, sz, "{\n\
+    \"time_ldr\": %d,\n\
+    \"time_per_stair\": %d,\n\
+    \"idle_pwm_max\": %d,\n\
+    \"active_pwm\": %d,\n\
+    \"ldr_schwelle\": %d\n}\n",
+           param.time_ldr, param.time_per_stair, param.idle_pwm_max,
+           param.active_pwm, param.ldr_schwelle);
+}

lib/treppe/treppe.h

@@ -6,7 +6,7 @@
 #include <EEPROM.h>
 
 //#define LDRDEBUG  // comment in to override LDR measurement
-#define LDR_HYS 1 // Hysteresis for switching off FSM [lux]
+#define LDR_HYS 8 // Hysteresis for switching off FSM [lux]
 
 #define SENSOR_OBEN 16
 #define SENSOR_UNTEN 12
@@ -28,7 +28,7 @@ private:
     uint16_t time_per_stair = 300; // dimmtime per stair [ms]
     uint16_t idle_pwm_max = 100;
     uint16_t active_pwm = 2000;
-    uint16_t ldr_schwelle = 2; // activation value for FSM [lx]
+    uint16_t ldr_schwelle = 30; // activation value for FSM [lx]
   };
   stairway_param_t param;
   stairway_param_t param_pend; // zwischenspeicher änderungen
@@ -105,6 +105,8 @@ public:
 
   // Parameter section
   void save_param_to_eeprom();
+  void param_to_json(char* json_str, size_t sz);
+
   void set_idle_pwm_max(const uint16_t value, const vorgabe_typ_t vorgabe_typ);
   void set_active_pwm(const uint16_t value, const vorgabe_typ_t vorgabe_typ);