How Do I Extend more IO on a Raspberry Pi Board?
Setting up a project and suddenly running out of GPIO pins? Yep, I’ve been there. It’s frustrating—and it always seems to happen when you’re mid-prototype. You can expand Raspberry Pi IO using GPIO expanders, I2C multiplexers, shift registers, USB hubs, or HATs designed for IO extension. I’ll walk you through how I’ve handled this challenge—sometimes […]