ESP32 Dual-Relay Wi-Fi and Bluetooth Development Board

Build a custom wireless-control project around an ESP32 board with two relay channels. Wi-Fi and Bluetooth support combine with exposed I/O connections, giving you a starting point for programmed switching and input experiments.

• ✅ Control two channels from one board - the paired relays provide separate switching outputs.
• ✅ Connect your own inputs and interfaces - GPIO and UART connections are brought out for development.
• ✅ Use a familiar programming environment - the board is intended for ESP32 development with Arduino IDE support.

Develop the control behaviour your project needs

The board is intended for learning and secondary development, so its behaviour depends on the programme you load and the connected circuit. The reset and programmable IO0 buttons provide onboard controls while developing.

Match the power supply, relay load and external wiring to the board's markings and technical documentation. Relay contacts and ESP32 I/O have different electrical requirements. This is a development component, not a finished plug-in smart-home controller.

Technical details

• ESP32 Wi-Fi/Bluetooth development board
• Two onboard relay channels
• 4 MB flash
• GPIO and UART breakout connections
• Reset and programmable IO0 buttons
• Package: one board; programming and power source required

Start your next two-channel wireless-control project with the ESP32 relay board.