# Retro Tech Community GAT A GAT (v1.69bis compatible) addon for Retro Tech. Code was ported from code that was rushed in a couple of days. Sorry. ## Hardware Specifications - CH32X033F8P6 MCU (62K Flash, 20K SRAM) - IS31FL3729 matrix LED controller - 9x RGB LED, one for each `RETRO` character - White, amber and green LEDs for the cursor - Adjustment knob to feel like the old times - Up/Down/Press Jogwheel for programming - 8Kbit EEPROM for storing user configurations ## Manual User instructions for the addon can be found at trueControl BASIC: * https://basic.truecontrol.org/database/dc33/retro-tech-gat/ ## Building Firmware is provided as a MounRiver Studio II project. The MRS2 version originally used v2.20. You can freely download MounRiver Studio at http://mounriver.com/download. The software is in Engrish. ## Flashing Firmware can be debugged and flashed from within MounRiver Studio II using a WCH-LinkE debug probe. Alternatively, firmware can be updated with WCHISPTool or equivalent using the USB connector. At this time no instructions are provided for updates. If and when there is a firmware update available, update instructions will be provided.