This repository contain all my tinkerings with Arduino boards I did for my personal entertainment and enlightenment. The Arduino language and associated IDE are not used, as they do not suit my taste. Here, it's Linux, plain C, Makefile, and a shell.

Unless specified otherwise, those tutorials/projects are targeting the Arduino UNO board.

The tutorials are more or less in topological order : later tutorials are building upon earlier tutorials. Each tutorial has some notes I took, as an attempt to leave the least amount of mystery.

1. led-blinker : blinks the Arduino UNO's on-board led
2. pin-trigger : switch on and off the Arduino UNO's on-board led with pin 12
3. full-auto-led-blinker : blinks an external led driven by pin 9, without ever leaving sleep mode
4. interrupt-driven-led-blinker : blinks the Arduino UNO's on-board led with interruptions
5. servo-control : controls a servor motor
6. serial-sync-echo : echo on the serial output what is given in the serial input, synchronous style
7. ADC : sample an analog input to switch on and off switch on and off the Arduino UNO's on-board led.
8. i2c: interfacing with i2c devices
9. SSD1306 : code for controlling SSD1306 OLED screens, easy to follow

On a vanilla Archlinux, install the following packages:

• arduino-avr-core C language toolchain for AVR MCUs and related utilities
• picocom Minimalistic serial terminal

On Ubuntu, install the following packages:

• gcc-avr
• avr-libc
• picocom

I gathered the information I needed to realize the tutorials from those sources

• Atmel ATmega328P Reference Manual
• Arduino in C A small series of tutorials on using plain C and AVR utilities
• Easy UART on with avrlib Synchronous UART handling libavr's stdio implementation
• Bare Metal Micro Nicely explained examples on the fundamentals ie. ports, interrupts
• The USART of the AVR Detailed explanation about the USART/UART, good complement to the reference manual
• I2C on the AVR
• Various topics on AVR and I2C modules
• SPI programming

I am very thankful to all those people who took the time and the effort to write those tutorials and manuals.

• Alexandre Devert - marmakoide