arduino-nano-33-ble-uart/receiver.cpp

receiver.cpp

#include <Arduino.h>

void setup()
{
  Serial.begin(9600);
  pinMode(LED_BUILTIN, OUTPUT);   // set LED pin as output
  digitalWrite(LED_BUILTIN, LOW); // switch off LED pin
  Serial1.begin(9600);            // initialize UART with baud rate of 96006
}

void loop()
{
  while (Serial1.available() >= 0)
  {
    char receivedData = Serial1.read(); // read one byte from serial buffer and save to receivedData
    if (receivedData == '1')
    {
      digitalWrite(LED_BUILTIN, HIGH); // switch LED On
      Serial.println("LEDS ON");
    }
    else if (receivedData == '0')
    {
      digitalWrite(LED_BUILTIN, LOW); // switch LED Off
      Serial.println("LEDS OFF");
    }
  }
}