I designed and built a QMK/VIAL macro pad from scratch. Let me tell you about the things I learned and useful resources I found as a beginner.
I programmed an Arduino Pro Micro to write a long password every time I pressed a button. It helped me save a ton of time and I'm sharing how you can make one yourself - at your own risk!
I'll tell you how I connected an LED strip to Amazon Alexa, using a Wemos D1 mini. An easy and cheap DIY home automation and IoT project.