PiCOLECO

Colecovision flash multicart based on Pico clone

NEW version 1.0a uploaded with partial support for Megacart switch banking roms up to 128kb

version 1.0c uploaded (fixed sprite bug in Pac-Man Compilation), porting to SDK 2.2 in progress

PiCOLECO is a multicart DIY yourself based on cheap "purple" Raspberry Pi Pico clone. It should works for all roms up to 32k, but there's no enough RAM on Pico to handle 128k or larger multirom.

WARNING! "purple" Pico has not the same pinout of original Raspberry "green" ones, you MUST use the clone or you may damage your hardware.

NOTE FAT FS used for flash file management is quite simple, you can't use FILENAME LONGER THAN 32 BYTES INCLUDED SUFFIX!!!!! PLEASE RENAME YOUR BIN FILES OR THE GAMES WON'T START AT ALL!!!

Kicad project and gerbers files for the pcb are in the PCB folder, you need only a diode and a push buttons for resetting the cart if needed or want restart. Add you pico clone, and flash the firmware ".uf2" in the Pico by connecting it while pressing button on Pico and drop it in the opened windows on PC. After flashed with firmware, and every time you have to change your ROMS repository, you can simply connect the Pico to PC and drag&drop "BIN" files into.

More info on AtariAge forum: https://forums.atariage.com/topic/366660-picoleco-a-diy-multicart-for-colecovision/

Even if the diode should protect your console, DO NOT CONNECT PICO WHILE INSERTED IN A POWERED ON CONSOLE!

Credits

Thank to Robin Robin Edwards and his A8PicoCart (https://github.com/robinhedwards/A8PicoCart), i found very smart his way to manage the Flash RAM and the USB updates, so i admit i took large parte of his code for it!. I used also the new and fantastic CVBasic for writing menu and file selector in Colecovision, thank to Oscar Toledo (https://nanochess.org/) for creating it.