got parameter fetch working beta only

lib/treppe/treppe.cpp

@@ -58,7 +58,7 @@ void Treppe::start_animation(dimmer_t *dimmer, bool dim_type, uint16_t on_pwm,
       dimmer->stufe = stufen - 1;
 
     dimmer->ticks = param.time_per_stair / INT_TIME; // [ms]
-  } else {                                                // DIM_LDR
+  } else {                                           // DIM_LDR
     dimmer->ticks = param.time_ldr / INT_TIME;       // [ms]
   }
 
@@ -172,13 +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 voltage = analogRead(A0)*0.0036;
-  float ldr_ohm = 40.57*(3.3-voltage)/voltage;
+  // 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
+#ifdef LDRDEBUG
+  Serial.printf("Ohm: %f lux: %f Comp: %d\n", ldr_ohm, ldr_value,
+                param.ldr_schwelle);
+#endif
   return ldr_value;
 }
 
@@ -186,7 +187,7 @@ bool Treppe::check_ldr() {
   static uint8_t active = 0;
 
 #ifdef LDRDEBUG
-  //return true;
+  // return true;
 #endif
 
   // follow up: averaging over many samples?
@@ -271,17 +272,16 @@ 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");
-        }
+  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");
+    }
   }
 
 #ifdef DEBUG_TIMING
@@ -321,7 +321,7 @@ void Treppe::setup() {
 void Treppe::save_param_to_eeprom() {
   EEPROM.put(EEP_START_ADDR,
              param); // copy Parameters so "EEPROM"-section in RAM
-  EEPROM.commit();        // write "EEPROM"-section to flash
+  EEPROM.commit();   // write "EEPROM"-section to flash
 }
 
 void Treppe::set_idle_pwm_max(const uint16_t value,
@@ -382,9 +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

@@ -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);