rfm96

// ** RECV **

#include <SPI.h>

#include <RFM69.h>
#include <RFM69Config.h>

RFM69 radio;

void interrupt_function(){
  radio.isr0();
}

void setup() {
  Serial.begin(115200);

  radio.init();

  attachInterrupt(0, interrupt_function, RISING);
  delay(100);

  // radio.setFrequency(868.0f);
  radio.setModeRx();
}

void loop() {
  if (radio.available()) {
    Serial.print(radio.lastRssi());

    uint8_t buf[65];
    uint8_t len = sizeof(buf) - 1;

    radio.recv(buf, &len);
    buf[64] = 0x00;

    Serial.println((char *)buf);
  }
}