ESP32 WiFi Relay Board - 8-Channel, 4-20mA Input, 0-10V I/O, With RS485, For Smart Home, IoT, PLC Projects (24V DC With Shell)

About This Product

Hey makers and tinkerers, this ESP32-based relay board is packed with features for automation projects. It runs on 12V or 24V DC and gives you 8 relay outputs, 8 opto-isolated digital inputs, 4 analog inputs (0/4-20mA or 0-10V), 2 analog outputs (0-10V or 0/4-20mA), and an RS485 interface. Basically, it’s a powerhouse for controlling lights, motors, sensors, or anything else in a smart home, workshop, or IoT setup. The catch? You need to program it yourself using a 38-pin ESP32 board (not included unless you buy the kit). But if you know your way around ESP32 code, you can set up Wi-Fi remote control, timers, data logging, motor sequences, and way more. The board comes with a shell for protection, measures about 180x72x19mm (board only), and draws between 14mA standby up to ~291mA with all relays on. It’s perfect for DIYers who want a flexible, industrial-grade controller without the PLC price tag. Just be ready to write some code—this is a blank canvas for your ideas.

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