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Raspberry Pi

Raspberry Pi Tachometer Uses Python & Hall Effect Sensor

March 19, 2021March 16, 2021 by Rob

I’ve been building large inexpensive outdoor robotic rovers that can carry a heavy payload for miles.  I needed a way to measure the speed of the wheels and use that information to calculate how fast the bot is moving.  I wanted software that was written with Python 3 and which would run on a Raspberry Pi. … Read the rest

Categories Python, Raspberry Pi Leave a comment

Raspberry Pi GPIO Power Switch Not Working – Solved

March 16, 2021March 10, 2021 by Rob

I wanted to connect a power button to a Raspberry Pi 4’s GPIO pins so I could shut it off or turn it on without having to touch the USB cable.  The easiest way to do this didn’t work for me and it took me a couple of hours to find out why. … Read the rest

Categories Raspberry Pi 3 Comments

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