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README.md

SideboardLED

Sprit: ollpe never dies

Another tiny project to control a WS2812 stripe via an Arduino based microcontroller.

Hardware

  • Atmega8
  • 75 WS2812LEDs
  • USB Serial converter

Programmer, e.g.:

  • AVRISPmkii

Software

Arduino

In order to flash the software, select the following settings in Arduino:

  • Tools | Board "Arduino NG or older"
  • Tools | Processor "Atmega8"
  • Sketch | Export Compiled Binary

In your arduino installtion, update the CPU frequency, as we are using the internal clock with 8Mhz. Find the following file /hardware/arduino/avr/boards.txt. Inside the file, search for the chapter Arduino NG or older w/ ATmega8 and add the following line:

atmegang.menu.cpu.atmega8.build.f_cpu=8000000L

Avrdude

The flashing itself is done with avrdude:

avrdude -c AVRISPmkii -p m8 -u -U flash:w:SideboardLED.ino.standard.hex

Initial once the fuses must be burned:

avrdude -c avrispmkii -p atmega8 -U lfuse:w:0xe4:m -U hfuse:w:0xd9:m -U efuse:w:0xfc:m