What do you do when your microcontroller doesn’t have enough pins? Learn how to use the CD4094 output-type shift register and the CD4021 input-type shift register to control LEDs and read out the status of pushbuttons, and all of that with only three wires.
In six steps, learn all about the CD4094 output-type shift register, the CD4021 input-type shift register, and how to use them with a microcontroller. And in the end, put it all to use with an SNES game controller, which—you guessed it—also uses shift registers on the inside.
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Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
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