The SP0256-AL2 is almost unobtainable, and if you can get a non-fake device then it will cost you lots. What do I do with my Psion speech adapter PCBs that I have no Is for? make an emulated IC, that's what. ... https://www.youtube.com/watch?v=njsNJoiKlUM
This part of the disk drive teardown covers the platter motor and the bearings of the head arm and the motor.
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https://www.youtube.com/watch?v=SnG50HIYgvU
The PCBs have arrived, so I populate one and have a go at running the LCD using it.
PCBs had a couple of errors on the legend, which threw me for a bit until I realised what I'd done.
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https://www.youtube.com/watch?v=zkEU_FT7kD4
A quick project, or two, to make a macro keyboard to help with repetitive typing.
This is the display:
https://www.buydisplay.com/arduino-3-2-inch-tft-lcd-touch-shield-ili9341-library-for-mega-due-uno
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https://www.youtube.com/watch?v=TLl5yEcEMIM
I have an XY table. It works OK, but the motors could do with more torque. I'm going to investigate other options, but it does work.
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https://www.youtube.com/watch?v=xJup_uHmFPw
This is a hand wired 6502 computer that I made over 20 years ago. The circuit is made using soldered wires on veroboard.
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https://www.youtube.com/watch?v=64hfmh2c-jY
What is a transputer?
It's a processor from the 80's which has some really interesting and different features.
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https://www.youtube.com/watch?v=MV_q7ltG8gY