Gopher ARCADE is a simple ATTiny85 game console based on Armour Grade. I wanted to make some modifications and also improve my PCB making skills, so I recreated it from scratch since there were no source files, only gerbers.

There's a good collection of games written in Arduino/C: https://github.com/andyhighnumber/Attiny-Arduino-Games

My idea is to write some games in Go with TinyGo

While is pretty straight forward to mount all the components, check out the build guide for the easiest order to do so.

In the hardware/kicad folder you could find the KiCAD project with the used mods as well as the gerbers files in case you want to just order some PCBs without modifying them.

The github.com/conejoninja/arcade/tinyssd1306 package has a simple driver for the display as the once in the drivers repository has a buffer and doesn't fit in the ATTiny85.

Board's pins are defined as follows:

const (
	P5 Pin = PB0
	P6 Pin = PB1
	P7 Pin = PB2
	P2 Pin = PB3
	P3 Pin = PB4
	P1 Pin = PB5

	LED          = P1
	BUTTON_LEFT  = P7
	BUTTON_RIGHT = P5
	SPEAKER      = P6
)

By default the ATTiny85 runs at 1MHz, you can make it runs at 8MHz with the following command (this is only required once).

avrdude -p attiny85 -c usbasp -B 32 -U lfuse:w:0xE2:m

You could use TinyGo with USBASP and the target gopher-arcade to flash it as follows:

tinygo flash -size=short -target gopher-arcade  .