微處理器 - Microchip ATmega328 (Arduino Nano) - Arduino - LED

參考資訊：
https://swf.com.tw/?p=1840
https://github.com/arduino/arduino-cli/issues/538
https://arduino.github.io/arduino-cli/0.31/installation/

步驟如下：
1. 連接板子到PC
2. 執行如下命令

$ cd
$ arduino-cli sketch new blink
$ vim blink/blink.ino

void setup() {
    pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
    digitalWrite(LED_BUILTIN, HIGH);
    delay(1000);
    digitalWrite(LED_BUILTIN, LOW);
    delay(1000);
}

$ arduino-cli compile --fqbn arduino:avr:nano:cpu=atmega328old blink
$ arduino-cli board list
    Port         Protocol Type              Board Name FQBN Core
    /dev/ttyUSB0 serial   Serial Port (USB) Unknown

$ arduino-cli upload -v -p /dev/ttyUSB0 -b arduino:avr:nano:cpu=atmega328old blink
    avrdude: 924 bytes of flash written

完成