This fork contains my tests and examples for some arduino programs in zig, based on the the upstream https://github.com/FireFox317/avr-arduino-zig and some extensions from https://github.com/Guigui220D/avr-arduino-zig

AVR Arduino Zig

This project can build code that can be run on an Arduino Uno, using only Zig as its only dependency.

Currently only avrdude is an external dependency that is needed to program the chip.

Build instructions

• zig build -Dname=examples/lcd.zig creates the executable.
• zig build upload -Dtty=/dev/ttyACM0 -Dname=examples/lcd.zig uploads the code to an Arduino connected to /dev/ttyACM0.
• zig build monitor -Dtty=/dev/ttyACM0 shows the serial monitor using screen.
• zig build objdump shows the disassembly (avr-objdump has to be installed).

Debug and development

• avr-nm --size-sort --reverse-sort -td zig-out/bin/blink shows sorted symbol sizes https://arduino.stackexchange.com/a/13219/77598

Board info

• original api: https://github.com/arduino/ArduinoCore-API

• pins: https://github.com/arduino/ArduinoCore-avr/blob/24e6edd475c287cdafee0a4db2eb98927ce3cf58/variants/standard/pins_arduino.h

• libraries:

  • https://github.com/arduino-libraries/LiquidCrystal

• delay & delayMicros avr efficient implementation example: https://github.com/arduino/ArduinoCore-avr/blob/24e6edd475c287cdafee0a4db2eb98927ce3cf58/cores/arduino/wiring.c ArduinoCore-avr/cores/arduino/wiring.cs