FreHD for the TRS-80 Model 1
author: kiwisincebirth
2 layer board of 3.32 x 3.55 inches (84.2 x 90.3 mm)
Uploaded:
October 23, 2025
Shared:
October 23, 2025
Total Price:
$58.90
This is a project to provide a FreHD that directly connects to the TRS-80 Model 1 40 pin expansion port. It was designed to be functionally compatible using primarily all the same parts, and also software compatible, as it uses he same PIC and GAL firmware
It was designed to work with the Model 1 attached via appropriate 40 pin ribbon cable, and specifically for the Model 1k via it’s internal expansion port.
The physical layout of the board while different still has the power and IO connection is on one side, and SD card and LED’s on the other. Mounting holes and some pinouts are different.
This is a project to provide a FreHD that directly connects to the TRS-80 Model 1 40 pin expansion port. It was designed to be functionally compatible using primarily all the same parts, and also software compatible, as it uses he same PIC and GAL firmware
It was designed to work with the Model 1 attached via appropriate 40 pin ribbon cable, and specifically for the Model 1k via it’s internal expansion port.
The physical layout of the board while different still has the power and IO connection is on one side, and SD card and LED’s on the other. Mounting holes and some pinouts are different.
