robert.rozee Guru
 Joined: 31/12/2012 Location: New ZealandPosts: 2541 |
| Posted: 07:57am 30 May 2026 |
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i believe that some years back there were one or two forum members doing almost exactly what you describe - they were using an MX170 an an I/O expander that accepted text commands to control pin states, set up PWM signals, query switch states, etc.
i can't be 100% sure, but i also think some were doing the same for graphics commands to draw on an attached LCD screen - this was before the days of driving VGA or DVI.
Geoff and others who were around back then may remember better than me.
cheers, rob :-) Edited 2026-05-30 17:57 by robert.rozee |