GENajam by Jamatar is a physical front end MIDI interface for GenMDM for the Sega Mega Drive / Genesis. This device will allow you to access all FM synthesis settings for the 6 channels of the YM2612 offered by GenMDM as well as load and save TFI files from SD card.

Sadly, the original GENajam by Jamatar is no longer available for purchase. This project recreates the GENajam hardware as an I/O shield for the Arduino Mega 2560 using a fork of Jamatar's GENajam software.

GENajam Assembly Guide coming soon!

Digikey parts list:

https://www.digikey.com/en/mylists/list/FDF40PBG0Z (all parts except knobs, LCD Module and the SD card Module)

Mouser parts list (alternate):

https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=ce3a85f11b (all parts except knobs, 3.5mm jacks and the SD card Module)

In addition to this PCB and the above parts, you will need the following:

• Arduino Mega 2560 https://store-usa.arduino.cc/products/arduino-mega-2560-rev3
• 1602 LCD Module with 16-pin header https://www.amazon.com/HiLetgo-Display-Backlight-Controller-Character/dp/B00HJ6AFW6/
• Micro SD Card Module https://www.amazon.com/dp/B08C4WY2WR
• four (4) knobs for the bottom row of potentiometers. You will want to find knobs for an 18T knurled shaft. A 12.5mm OD knob works very well such as: https://lovemyswitches.com/sandblasted-black-aluminum-knob-the-pantherkill-18t-knurled-shaft-12-5mm-od/
• 5-pin DIN to 3.5mm (1/8 inch) TRS Type A MIDI cable. Male DIN https://www.amazon.com/dp/B0D96B15BF or Female DIN https://www.amazon.com/dp/B0C2RLB3SL depending on your needs.
• 3.5mm (1/8 inch) TRS to 3.5mm (1/8 inch) TRS (stereo) patch cable (to go from GENajam MIDI out to the GenMDM MIDI in).