SparkFun Qwiic Single Relay - Control High Power Devices With I2C Commands, No Soldering Needed

About This Product

Hey makers and electronics enthusiasts! This SparkFun Qwiic Single Relay is seriously cool for controlling high-power devices with your microcontroller projects. The best part? The Qwiic system means no soldering required - just plug it into your compatible board and you're ready to go. This relay can handle up to 5.5A at 240VAC, which means you can control things like lamps, appliances, or other high-power devices safely from your low-power Arduino or other microcontroller. The I2C interface makes programming super straightforward with simple commands to turn the relay on and off. It comes with a default I2C address of 0x18, but you can change it easily (there's even a solder jumper on the back to switch to 0x19), allowing you to control multiple relays on the same bus. The screw terminals make connecting your high-power devices secure and reliable. SparkFun has included serious safety features too - increased ground isolation, air gaps around common pins, and doubled traces to handle the current properly. The operating voltage is 1.7V-3.6V with 23.5?? coil resistance. Whether you're building home automation systems, controlling workshop equipment, or creating IoT projects that need to switch power-hungry devices, this relay delivers professional performance in an easy-to-use package. The documentation and code examples from SparkFun are excellent as always. If you've been hesitant to work with high voltage but need to control AC devices from your projects, this relay provides that bridge safely and reliably. It's one of those components that opens up so many possibilities for your creations!