cube-kl/firmware/main.c

#include <avr/io.h>
#include <util/delay.h>

#include "twi.h"

int main(void) {

    twi_init();

    while(1) {
        uint8_t data[] = {'T','E','S','T'};
        twi_write(96, data, 4);
        _delay_ms(10);
    }

    while(1);
}