sketch_jan8a.ino

#include <RH_ASK.h>
#ifdef RH_HAVE_HARDWARE_SPI
#include <SPI.h> // Not actually used but needed to compile
#endif

// RH_ASK driver;
RH_ASK driver(2000, 4, 5, 2); // ESP8266 or ESP32: do not use pin 11 or 2
// RH_ASK driver(2000, 3, 4, 0); // ATTiny, RX on D3 (pin 2 on attiny85) TX on D4 (pin 3 on attiny85), 
// RH_ASK driver(2000, PD14, PD13, 0); STM32F4 Discovery: see tx and rx on Orange and Red LEDS

void setup()
{
#ifdef RH_HAVE_SERIAL
    Serial.begin(9600);	  // Debugging only
#endif
    if (!driver.init())
#ifdef RH_HAVE_SERIAL
         Serial.println("init failed");
#else
	;
#endif
}

void loop()
{
    uint8_t buf[RH_ASK_MAX_MESSAGE_LEN];
    uint8_t buflen = sizeof(buf);

    if (driver.recv(buf, &buflen)) // Non-blocking
    {
      int i;

      // Message with a good checksum received, dump it.
      Serial.print("Got:");
      driver.printBuffer("Got:", buf, buflen);
    }
}