Arduino AVR Boards Core

Try it in 3 steps

1. 1

   Install Arduino AVR Boards Core 1.8.8

   Use Arduino CLI to install a pinned AVR board package.

   arduino-cli core update-index && arduino-cli core install arduino:avr@1.8.8Copy
2. 2

   Create a minimal Blink sketch

   Create a small sketch that uses only standard Arduino APIs supported by boards such as Uno.

   mkdir -p BlinkTest && printf 'void setup(){pinMode(LED_BUILTIN, OUTPUT);}\nvoid loop(){digitalWrite(LED_BUILTIN, HIGH);delay(1000);digitalWrite(LED_BUILTIN, LOW);delay(1000);}\n' > BlinkTest/BlinkTest.inoCopy
3. 3

   Compile it for Arduino Uno

   Verify that the AVR core, avr-gcc toolchain, and board definition can produce firmware. Upload to hardware separately if needed.

   arduino-cli compile --fqbn arduino:avr:uno BlinkTestCopy

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