ArduinoJSON replies and strip.trigger() added

* Use ArduinoJSON to send JSON replies
* Add strip.trigger() according to
https://github.com/toblum/McLighting/issues/166

Arduino/McLighting/McLighting.ino

@@ -523,11 +523,13 @@ void setup() {
     #else
       json["home_assistant"] = "OFF";
     #endif
-    char buffer[json.measureLength() + 1];
-    json.printTo(buffer, sizeof(buffer));
+    //char buffer[json.measureLength() + 1];
+    //json.printTo(buffer, sizeof(buffer));
+    String json_str;
+    json.printTo(json_str);
     server.sendHeader("Access-Control-Allow-Origin", "*");
-    server.send(200, "application/json", String(buffer));
-    //json = String();
+    server.send(200, "application/json", json_str);
+    //json_str = String();
   });
 
 
@@ -914,6 +916,7 @@ void loop() {
   if (mode == SET_MODE) {
     DBG_OUTPUT_PORT.printf("SET_MODE: %d %d\n", ws2812fx_mode, mode);
     strip.setMode(ws2812fx_mode);
+    strip.trigger();
     prevmode = SET_MODE;
     mode = SETCOLOR;
   }
@@ -923,14 +926,17 @@ void loop() {
   }
   if (mode == SETCOLOR) {
     strip.setColor(main_color.red, main_color.green, main_color.blue);
+    strip.trigger();
     mode = (prevmode == SET_MODE) ? SETSPEED : HOLD;
   }
   if (mode == SETSPEED) {
     strip.setSpeed(convertSpeed(ws2812fx_speed));
+    strip.trigger();
     mode = (prevmode == SET_MODE) ? BRIGHTNESS : HOLD;
   }
   if (mode == BRIGHTNESS) {
     strip.setBrightness(brightness);
+    strip.trigger();
     if (prevmode == SET_MODE) prevmode == HOLD;
     mode = HOLD;
   }
@@ -938,28 +944,34 @@ void loop() {
     if (mode == WIPE) {
       strip.setColor(main_color.red, main_color.green, main_color.blue);
       strip.setMode(FX_MODE_COLOR_WIPE);
+      strip.trigger();
       mode = HOLD;
     }
     if (mode == RAINBOW) {
       strip.setMode(FX_MODE_RAINBOW);
+      strip.trigger();
       mode = HOLD;
     }
     if (mode == RAINBOWCYCLE) {
       strip.setMode(FX_MODE_RAINBOW_CYCLE);
+      strip.trigger();
       mode = HOLD;
     }
     if (mode == THEATERCHASE) {
       strip.setColor(main_color.red, main_color.green, main_color.blue);
       strip.setMode(FX_MODE_THEATER_CHASE);
+      strip.trigger();
       mode = HOLD;
     }
     if (mode == TWINKLERANDOM) {
       strip.setColor(main_color.red, main_color.green, main_color.blue);
       strip.setMode(FX_MODE_TWINKLE_RANDOM);
+      strip.trigger();
       mode = HOLD;
     }
     if (mode == THEATERCHASERAINBOW) {
       strip.setMode(FX_MODE_THEATER_CHASE_RAINBOW);
+      strip.trigger();
       mode = HOLD;
     }
   #endif

Arduino/McLighting/request_handlers.h

@@ -278,14 +278,35 @@ void handleSetWS2812FXMode(uint8_t * mypayload) {
   ws2812fx_mode = constrain(ws2812fx_mode_tmp, 0, strip.getModeCount() - 1);
 }
 
-char* listStatusJSON() {
-  char json[255];
-  char modeName[30];
+String listStatusJSON(void) {
+  //char json[255];
+  //char modeName[30];
   uint8_t tmp_mode = (mode == SET_MODE) ? (uint8_t) ws2812fx_mode : strip.getMode();
   
-  strncpy_P(modeName, (PGM_P)strip.getModeName(tmp_mode), sizeof(modeName)); // copy from progmem
-  snprintf(json, sizeof(json), "{\"mode\":%d, \"ws2812fx_mode\":%d, \"ws2812fx_mode_name\":\"%s\", \"speed\":%d, \"brightness\":%d, \"color\":[%d, %d, %d]}",
-           mode, tmp_mode, modeName, ws2812fx_speed, brightness, main_color.red, main_color.green, main_color.blue);
+  //strncpy_P(modeName, (PGM_P)strip.getModeName(tmp_mode), sizeof(modeName)); // copy from progmem
+  
+  //snprintf(json, sizeof(json), "{\"mode\":%d, \"ws2812fx_mode\":%d, \"ws2812fx_mode_name\":\"%s\", \"speed\":%d, \"brightness\":%d, \"color\":[%d, %d, %d]}",
+  //         mode, tmp_mode, modeName, ws2812fx_speed, brightness, main_color.red, main_color.green, main_color.blue);
+
+  const size_t bufferSize = JSON_ARRAY_SIZE(3) + JSON_OBJECT_SIZE(6);
+  DynamicJsonBuffer jsonBuffer(bufferSize);
+  JsonObject& root = jsonBuffer.createObject();
+  root["mode"] = (uint8_t) mode;
+  root["ws2812fx_mode"] = tmp_mode;
+  root["ws2812fx_mode_name"] = strip.getModeName(tmp_mode);
+  root["speed"] = ws2812fx_speed;
+  root["brightness"] = brightness;
+  JsonArray& color = root.createNestedArray("color");
+  color.add(main_color.red);
+  color.add(main_color.green);
+  color.add(main_color.blue);
+  
+//  char* json = (char*) malloc(root.measureLength() + 1);
+//  root.printTo(json, sizeof(json));
+
+  String json;
+  root.printTo(json);
+  
   return json;
 }
 
@@ -294,17 +315,31 @@ void getStatusJSON() {
   server.send ( 200, "application/json", listStatusJSON() );
 }
 
-String listModesJSON() {
-  String modes = "[";
+String listModesJSON(void) {
+//  String modes = "[";
+//  for (uint8_t i = 0; i < strip.getModeCount(); i++) {
+//    modes += "{\"mode\":";
+//    modes += i;
+//    modes += ", \"name\":\"";
+//    modes += strip.getModeName(i);
+//    modes += "\"},";
+//  }
+//  modes += "{}]";
+//  return modes;
+
+  const size_t bufferSize = JSON_ARRAY_SIZE(strip.getModeCount()+1) + strip.getModeCount()*JSON_OBJECT_SIZE(2);
+  DynamicJsonBuffer jsonBuffer(bufferSize);
+  JsonArray& json = jsonBuffer.createArray();
   for (uint8_t i = 0; i < strip.getModeCount(); i++) {
-    modes += "{\"mode\":";
-    modes += i;
-    modes += ", \"name\":\"";
-    modes += strip.getModeName(i);
-    modes += "\"},";
+    JsonObject& object = json.createNestedObject();
+    object["mode"] = i;
+    object["name"] = strip.getModeName(i);
   }
-  modes += "{}]";
-  return modes;
+  JsonObject& object = json.createNestedObject();
+  
+  String json_str;
+  json.printTo(json_str);
+  return json_str;
 }
 
 void getModesJSON() {
@@ -573,11 +608,10 @@ void checkpayload(uint8_t * payload, bool mqtt = false, uint8_t num = 0) {
     if (mqtt == true)  {
       DBG_OUTPUT_PORT.print("MQTT: ");
       #ifdef ENABLE_MQTT
-        mqtt_client.publish(mqtt_outtopic, listStatusJSON());
+        mqtt_client.publish(mqtt_outtopic, json.c_str());
       #endif
       #ifdef ENABLE_AMQTT
-        String liststat = (String) listStatusJSON();
-        amqttClient.publish(mqtt_outtopic.c_str(), qospub, false, liststat.c_str());
+        amqttClient.publish(mqtt_outtopic.c_str(), qospub, false, json.c_str());
       #endif
     } else {
       DBG_OUTPUT_PORT.print("WS: ");

Arduino/McLighting/version.h

@@ -1 +1 @@
-#define SKETCH_VERSION "2.1.0" 
+#define SKETCH_VERSION "2.1.1"

Arduino/McLighting/version_info.ino

@@ -1,5 +1,9 @@
 /*
- * 07 May 2018
+ * 07 May 2018 v 2.1.0
  * - Start of versioning v2.1, added version support
  * - '/esp_status' returns lot more info
+ * 
+ * 11 May 2018 v 2.1.1
+ * - Use ArduinoJSON to send JSON replies
+ * - Add strip.trigger()
   */