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

transmitter.cpp

#include <Arduino.h>

void setup()
{
    pinMode(LED_BUILTIN, OUTPUT);   // set LED pin as output
    digitalWrite(LED_BUILTIN, LOW); // switch off LED pin
    Serial.begin(9600);             // initialize serial communication at 9600 bits per second:
    Serial1.begin(9600);            // initialize UART with baud rate of 96007
}

void loop()
{
    char c = Serial.read();
    if (c == '1')
    {
        Serial1.println('1');
        digitalWrite(LED_BUILTIN, HIGH);
        Serial.println("LEDS ON");
    }
    else if (c == '0')
    {
        Serial1.println('0');
        digitalWrite(LED_BUILTIN, LOW);
        Serial.println("LEDS OFF");
    }
}