Quick fix of a toy keyboard.
More pictures:
http://trochilidae.blogspot.com/2020/05/chicco-keyboard-fix.html
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https://www.youtube.com/watch?v=IJ18SS9MJtU
The PRO-101 is in what is hopefully the final fixed form. The RAM is replaced by an RP2040 and there's a USB interface as well as a keyboard command interface for stand-alone operation.
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https://www.youtube.com/watch?v=w93zmpUBlWs
The swingarm is back from the powdercoaters. The chin guard bracket is fixed and has been powder coated as well. The coating looks good.
I used these people for powder coating:
https://www.abpowdercoating.co.uk/
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https://www.youtube.com/watch?v=S3AT8e1tLnw
To get some more RAM for the Pico so I can run larger emulated transputer code I add an SPI RAM chip to the Pico. Also an attempt to boot Minix, which doesn't go well.
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https://www.youtube.com/watch?v=YS-xCZsu00U