arduino.c3l

arduino.c3l is a small C3 library for Arduino/AVR projects, focused on ATmega328P boards such as the Arduino Uno.

What is included

• GPIO: configure pins and read/write digital values.
• Time: delay_ms, delay_us, millis, and micros.
• ADC: read analog inputs A0-A5.
• PWM: write 8-bit duty cycles on supported PWM pins.
• Servo: simple hobby servo control on D9/D10.
• UART: serial input/output helpers.
• I2C: master transmit/receive helpers.
• Interrupts: external interrupt attach/detach helpers.
• SSD1306: a small I2C OLED framebuffer driver.
• Minimal AVR startup/runtime support.

Quick example

module blink;

import arduino::gpio;
import arduino::time;

fn void main() @export("start") {
    gpio::pin_mode(D13, OUTPUT);

    while (true) {
        gpio::digital_write(D13, HIGH);
        time::delay_ms(1000);
        gpio::digital_write(D13, LOW);
        time::delay_ms(1000);
    }
}

Start with Getting Started, then follow the Blink Walkthrough.