Added check in RFControl to allow for backwards compatibility with Arduino-ESP 1.0.6

To do: Disable watchdog timer in ESP32-C3

src/extras/RFControl.cpp

@@ -22,7 +22,9 @@ RFControl::RFControl(uint8_t pin){
   config->rmt_mode=RMT_MODE_TX;
   config->tx_config.carrier_en=false;
   config->channel=(rmt_channel_t)nChannels;
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)
   config->flags=0;
+#endif
   config->clk_div = 1;
   config->mem_block_num=1;
   config->gpio_num=(gpio_num_t)pin;

src/extras/extras.ino

@@ -10,10 +10,7 @@ void setup() {
 
   Serial.println("\n\nHomeSpan RF Transmitter Example");
 
-  RFControl rf(19);               // create an instance of RFControl with signal output to pin 6
-
-  for(int i=0;i<8;i++)
-    new RFControl(18);
+  RFControl rf(18);               // create an instance of RFControl with signal output to pin 6
 
 #define NPOINTS 3