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Thanks for the links. I tried to understand the code, but I gave up: this is way too complex.
I however found a solution which works pretty well: my ESP32/Fabgl now runs as a VT100 terminal which uses the TRS80 CRT as a display. The PicoMite simply connects to the ESP32 in Serial Console mode, and voilà, it works! I get a nice 640X240 resolution, just in text at this moment, but I have seen that a display driver can be written in Basic, so maybe it could do the trick with regards to the graphics. Anyway, thanks to all for your help!Emmanuel.
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