write to leds with debug

void write_to_leds(){
    // writes values to PWM digital
    // LEDS have opposite direction to inputs
    Serial.println("Writing to PWM outputs inputs...");
    for (int i = 0; i < NUM_LIGHTS; i++) {
        analogWrite(digitalOutputsPWM[i], values[i]);
        Serial.print(i);
        Serial.print(": ");
        Serial.println(values[i]);
    }
}