Erik L. Arneson — Writer and Software DeveloperErik L. Arneson is a freelance writer and software developer with WordPress experience. He is located in Portland, Oregon.Jekyll2026-06-18T15:03:10+00:00https://arnesonium.com/feeds/erlang.xmlErik L. ArnesonRaspberry Pi GPIO with ErlangErik L. Arneson2017-04-10T17:23:14+00:00https://arnesonium.com/2017/04/raspberry-pi-gpio-with-erlang<p>Raspberry Pis are super cool. One of the neat things about them is that they have a ton of general purpose input/output (GPIO) pins, so you can use them to control all sorts of external devices. Unfortunately, most of the examples and applications are written in Python. I know, a lot of people really love Python, but it’s just not my cup of tea.
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<p>Enter the <a href="https://github.com/paoloo/gpio" target="_blank">Erlang πGPIO library</a> by <a href="https://paoloo.github.io/" target="_blank">Paolo Oliveira</a>! This is a simple, straightforward library that implements the RPi GPIO stuff for Erlang. Using it, I have created an Erlang library to control a 28BYJ-48 5V stepper motor with a ULN2003 controller board.</p>
<p><a class="button" href="https://github.com/pymander/stepper" target="_blank">Check out the library here.</a></p>
<p>https://www.instagram.com/p/BSp2ZdSA0cg/?taken-by=pymander</p>