TRS-80 Model 100 Gets Arduino Heart Transplant

The Tandy TRS-80 Model 100 is ripe for hacking, with their “built-for-service” designs. [Stephen Cass has replaced the motherboard with an Arduino Mega 2560. With the new interface, [Stephen] is able to access all of the pixels on the original display, and to use modern graphics libraries such as He intends to use a separate Teensy 4.1 to connect with the keyboard matrix and provide a VT100 terminal interface.

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