1.1: Fixed invisible sprites

The latest Learn Guide is available here: https://danthegeek.com/2026/08/25/colecojam-learn-guide/

This release (Build 54) has the following change:

• Sprites now rendered in the correct order (no more invisible sprites). This bug caused invisible bullets in Galaxian and a missing roof in Spy Hunter's weapons truck.

1.0: Sound now plays through HDMI

The latest Learn Guide is available here: https://danthegeek.com/2026/08/25/colecojam-learn-guide/

This release (Build 53) has the following additions/changes:

• The audio is now routed through the HDMI cable, sound should now play through the HDMI display.
• Audio through the headphone jack has been removed due to the addition of HDMI audio.
• The ColecoVision Game Cartridge Adapter is now supported. If a cartridge is inserted, it will automatically load when the Fruit Jam is turned on.

First Release

Refer to the README file for instructions on setting up you Fruit Jam. At a minimum, you will need at least one Adafruit USB game controller (https://www.adafruit.com/product/6285), a Colecovision BIOS file named "COLECO.BIN", one or more game cartridge files with the extension ".ROM", all stored in the "/coleco" folder on a MicroSD card inserted into the Fruit Jam.

To add files to the MicroSD Card without needing to removing it, connect the Fruit Jam to a PC and press the Rest button first, release then press BUTTON 1 within 2 seconds. This will mound the SD card on your host computer to allow drag and drop files onto the MicroSD Card. Note the buttons are pressed separately, unlike when pressing the buttons together to flash the image into the Fruit Jam.

To flash the Fruit Jam with the Colecovision emulator, Press BUTTON #1/UF2 first, then while holding it down press and release the Reset button. A folder should appear on your host computer, where you can drag and drop the colecojam.uf2 file, which contains the Colecovision emulator image.

This is the first release. A few games have been played successfully but others have crashed during play. Let me know what games are crashing.