Since we're thinking outside of the box, couldn't we replace the FTDI with a small arduino board? Something like an Arduino Micro or even a Digispark should do it.
Then, it should be possible to convert the M100 additional ESC codes to their VT100 equivalent on the fly and we will just have: M100 ---> Arduino ---> Android tablet (that will only work with the BCR mod, but you could add a max232 if you want to use the serial port instead) If the Android OTG doesn't recognize the Arduino as a serial port, I suppose we could just add a Digispark between the FTDI and the M100: M100 ---> FTDI ---> Arduino ---> Android tablet. Stephen Adolph <twospru...@gmail.com> wrote: > In M100 BASIC, you can lock the bottom row of the screen to show the > setting of the Function keys. Such a function does not exist in standard > VT100. We should be able to do this by setting the bottom margin of the scrolling window using the DECSTBM escape sequence ( https://vt100.net/docs/vt100-ug/chapter3.html#DECSTBM ). That being said, since I don't have a spare Android tablet, I think I'll go with a MVT100, a 7" LCD module from eBay (like this one: https://www.ebay.com.au/itm/7Inch-Lcd-Display-Module-mi-Vga-Socket-50Pin-1024X600-Ips-Monitor-Screen-K9W3/184527783134 ) and some 3D printing. Since the LCD and the MVT100 will be very close, I think I can ditch the VGA connectors and cable, and directly solder the MVT100 to the LCD controller board, which should make a compact solution. I'm hoping to build something comparable to the Omni128HQ monitor, which can be screwed under the M100 using the existing screw holes, but it will take some time before I can start looking into it (I need to fix my M100s first...). (https://retroradionics.co.uk/#!/OMNI-128HQ-LAPTOP-SCREEN/p/116017737/category=0) Eric