Delay light comms (mqtt, ws, broker) to avooid jamming

code/espurna/config/general.h

@@ -881,6 +881,10 @@
 #define LIGHT_SAVE_ENABLED      1           // Light channel values saved by default after each change
 #endif
 
+#ifndef LIGHT_COMMS_DELAY
+#define LIGHT_COMMS_DELAY       100         // Delay communication after light update (in ms)
+#endif
+
 #ifndef LIGHT_SAVE_DELAY
 #define LIGHT_SAVE_DELAY        5           // Persist color after 5 seconds to avoid wearing out
 #endif

code/espurna/config/hardware.h

@@ -112,7 +112,7 @@
     #define MANUFACTURER        "WEMOS"
     #define DEVICE              "D1_MINI_RELAYSHIELD"
 
-        // Buttons
+    // Buttons
     // No buttons on the D1 MINI alone, but defining it without adding a button doen't create problems
     #define BUTTON1_PIN         0   // Connect a pushbutton between D3 and GND,
                                     // it's the same as using a Wemos one button shield

code/espurna/light.ino

@@ -25,6 +25,7 @@ extern "C" {
 
 // -----------------------------------------------------------------------------
 
+Ticker _light_comms_ticker;
 Ticker _light_save_ticker;
 Ticker _light_transition_ticker;
 
@@ -658,6 +659,26 @@ bool lightHasColor() {
     return _light_has_color;
 }
 
+void _lightComms(unsigned char mask) {
+
+    // Report color & brightness to MQTT broker
+    #if MQTT_SUPPORT
+        if (mask & 0x01) lightMQTT();
+        if (mask & 0x02) lightMQTTGroup();
+    #endif
+
+    // Report color to WS clients (using current brightness setting)
+    #if WEB_SUPPORT
+        wsSend(_lightWebSocketOnSend);
+    #endif
+
+    // Report channels to local broker
+    #if BROKER_SUPPORT
+        lightBroker();
+    #endif
+
+}
+
 void lightUpdate(bool save, bool forward, bool group_forward) {
 
     _generateBrightness();
@@ -672,21 +693,11 @@ void lightUpdate(bool save, bool forward, bool group_forward) {
     _light_steps_left = _light_use_transitions ? _light_transition_time / LIGHT_TRANSITION_STEP : 1;
     _light_transition_ticker.attach_ms(LIGHT_TRANSITION_STEP, _lightProviderUpdate);
 
-    // Report channels to local broker
-    #if BROKER_SUPPORT
-        lightBroker();
-    #endif
-
-    // Report color & brightness to MQTT broker
-    #if MQTT_SUPPORT
-        if (forward) lightMQTT();
-        if (group_forward) lightMQTTGroup();
-    #endif
-
-    // Report color to WS clients (using current brightness setting)
-    #if WEB_SUPPORT
-        wsSend(_lightWebSocketOnSend);
-    #endif
+    // Delay every communication 100ms to avoid jamming
+    unsigned char mask = 0;
+    if (forward) mask += 1;
+    if (group_forward) mask += 2;
+    _light_comms_ticker.once_ms(LIGHT_COMMS_DELAY, _lightComms, mask);
 
     #if LIGHT_SAVE_ENABLED
         // Delay saving to EEPROM 5 seconds to avoid wearing it out unnecessarily