ChillyCart (hardware)

A simple rp2350 based gameboy(color) cartdrige complete with:

• SPI SD card
• RTC
• Accelerometer
• 8 MB of PSRAM

⚠️ Warning: untested design, DO NOT USE

Parameter	Value
PCB Layers	2
Surface Finish	ENIG(w/ gold fingers)
Board Thickness	1.0mm
Meow	prrrr

TODO:

• Test if the design actually works and doesn't blow up
• Route power and PSRAM/flash data lines in a cleaner way
• Provide BOM ( and cost optimize some components )

Soures of inspiration

• kicad-gamepaks - cartrdge connector and edge cuts
• Croco Cartridge - voltage translator
• SummerCart - RTC and power mux