Arduino source code: Tour Easy front & rear running light

RunningLight.ino

// Tour Easy Running Light
// Ed Nisley - KE4ZNU
// September 2021
// 2023-03 preprocessorize for front/rear lights

// https://github.com/markfickett/arduinomorse
#include <morse.h>

// Bafang headlight output pulls pin low
#define PIN_LIGHTMODE 2

#define PIN_OUTPUT  13

#define FRONT

#if defined(FRONT)
#define BLINKS "b  e   "
#define POLARITY false

#elif defined(REAR)
#define BLINKS "s   "
#define POLARITY true

#else
#error "Needs FRONT or REAR"

#endif

// second param: true = active low output
LEDMorseSender Morser(PIN_OUTPUT,POLARITY,(float)10.0);

void setup()
{
    pinMode(PIN_LIGHTMODE,INPUT_PULLUP);

    Morser.setup();

    Morser.setMessage(String("qst de ke4znu   "));
    Morser.sendBlocking();

    Morser.setSpeed(75);
    Morser.setMessage(String(BLINKS));
}

void loop()
{
    if (!Morser.continueSending())
        if (digitalRead(PIN_LIGHTMODE) == HIGH)
            Morser.startSending();
        else
            digitalWrite(PIN_OUTPUT,HIGH);      // constantly turn on in headlight mode

}

More details on my blog at https://softsolder.com/2023/08/22/tour-easy-running-lights-firmware/