The Desk of Ladyada -Yet Another Stemma & Seesaw Sunday - PCF8574 & PC Joystick
We blogged about this cool project that converts a PC joystick to USB https://github.com/necroware/gameport-adapter and we realized there's probably millions of these old joysticks folks may be wanting to update or interface with. So we threw together a quick PC Joystick QT breakout! I'm using seesaw cause we need analog inputs as well as digital and once you have ADC + GPIO in an I2C project we feel we're best off going with a microcontroller. We also wrapped up an ancient PCF8574 https://www.digikey.com/short/7bvpbqvt QT breakout and wrote a library for it. The PCF8574 is a very wierd…
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