Raspberry Pi Relay Expansion Board - 5A 250V AC/DC Power Relay Module For Pi 4B/3B+/3B/2B/A+/B+

About This Product

Raspberry Pi enthusiasts, this relay expansion board opens up so many possibilities for home automation and control projects! The board gives your Pi the ability to control high-voltage and high-current devices safely - we're talking up to 5A at 250V AC or 5A at 30V DC, which covers most household appliances. The compatibility is excellent - it works with Raspberry Pi A+/B+/2B/3B/3B+/4B, so pretty much any model you might have. The photo coupling isolation is crucial because it prevents interference from the high-voltage circuit from affecting your Pi's sensitive electronics. I've been using this to control lamps, fans, and even a coffee maker through my Pi, and it's been completely reliable. The onboard LEDs are super helpful for indicating relay status at a glance. The relay control jumper is a nice feature too - it allows you to control the relays by custom pins rather than being locked into the default GPIO pins. The development resources provided are comprehensive with examples in wiringPi, WebioPi, shell, python, and bcm2835, making it easy to get started even if you're relatively new to Pi programming. The package includes the board itself plus RPi screws for secure mounting. The build quality is solid with high-quality relays that should last through many switching cycles. Whether you're building a smart home system, creating automated garden controls, setting up a pet feeder, or any project that requires controlling AC/DC devices with your Pi, this relay board delivers both safety and functionality. It's definitely one of those expansion boards that takes your Pi projects to the next level by allowing interaction with the real world beyond just sensors and displays. The technical support offered is also reassuring if you run into any setup issues. A fantastic addition to any serious Pi enthusiast's toolkit!