EEVblog #1054 - How an Analog PC Joystick Works

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How does a PC read an old school analog joystick?
It might be more interesting than you think.
Or how to make an ADC out of a 555 Timer...

IBM PC Jr Technical Reference Manual:
http://www.retroarchive.org/dos/docs/ibmpcjrtechref.pdf

Tandy 1000 Technical Reference Manual:
https://ia801708.us.archive.org/5/items/Tandy_1000_Computer_Service_Manual_1985_Tandy/Tandy_1000_Computer_Service_Manual_1985_Tandy.pdf

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Tags:
eevblog
video
analog joystick
pc joystick
how it works
555 timer
vintage
retro
ibm pc jr
tandy 1000