{"title":"Relay Control PCB","handle":"relay-control-pcb","url":"/products/relay-control-pcb","description":"A bare PCB for building a relay control circuit, based on SparkFun's Controllable Power Outlet tutorial. It allows you to switch high-voltage loads using a simple 0–5V GPIO signal from any microcontroller. Components must be sourced and soldered separately.\n\nKey Features\n\n\nBare PCB – Solder your own components for a custom relay controller\n\nGPIO Controlled – Switch with a 0–5V signal from any microcontroller\n\nHigh-Voltage Switching – Control mains-powered devices safely\n\n\n\nWarning: This project involves high-voltage mains wiring. Only attempt this if you are experienced with mains electrical work and understand the safety risks involved.\n\n\nIdeal For\n\nMicrocontroller-switched power outlets\nHome automation relay circuits\nLearning relay control electronics\n\n\nPackage Contents\n\n1× Relay control PCB (bare board, components not included)\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":8701,"title":"Default Title","sku":"SF-COM-11041","price":5.24,"on_sale":false,"in_stock":true,"available_quantity":8,"option1":"Default Title"}]}