fix interfering channels (2/2)

software/src/pusher.cpp

@@ -13,7 +13,6 @@ Pusher::Pusher(void) {
 }
 
 void Pusher::setup(void) {
-  int channel = 13; // LEDC_CHANNEL_3 // beware: some channels interfere with the rmt peripheral used by FastLED
   ledcSetup(channel, 50, TIMER_WIDTH);
   for(int pin : SERVO_PINS) {
     if (xSemaphoreTake(xSemaphore, TIMEOUT) == pdTRUE) {
@@ -30,11 +29,7 @@ void Pusher::setup(void) {
 
 void Pusher::push(int num) {
   if (xSemaphoreTake(xSemaphore, TIMEOUT) == pdTRUE) {
-    int channel = 1;
     int pin = SERVO_PINS[num];
-    if (channel >= LEDC_NUM_CHANNELS) {
-      return;
-    }
 //    ledcSetup(channel, 50, TIMER_WIDTH);
     ledcAttachPin(pin, channel);
     ledcWrite(channel, MIN_PULSE_WIDTH);

software/src/pusher.h

@@ -18,6 +18,8 @@ static constexpr uint8_t PROGMEM LEDC_NUM_CHANNELS = 8; // default pulse width
 
 static constexpr TickType_t PROGMEM TIMEOUT = portMAX_DELAY;
 
+static constexpr uint8_t PROGMEM channel = 13; // LEDC_CHANNEL_3 // beware: some channels interfere with the rmt peripheral used by FastLED
+
 class Pusher {
   public:
     Pusher(void);