Check the listing for details. ESP32 ESP32-WM Development Board 2channel WIFI Relay Module DC 5-30V. Condition: New. Listed at 15.89 USD. Powerful ESP32 Module: This AC powered ESP32 relay board features the robust ESP32-32E WiFi & BLE 4.2 module with a massive 4MB flash memory, ensuring stable performance for your smart home applications and A rduino projects. With dual-channel capability, it can seamlessly control devices with AC 250V or DC 30V, making it the perfect solution for diverse relay switch tasks. Ease of Development: Our ESP32 relay module's I/O pins and UART programming port are all easily accessible, allowing for hassle-free secondary development. The built-in programmable button and reset switch simplify setup and coding, empowering developers to create innovative projects with ease using A rduino IDE or other development tools. Versatile Power Supply: This relay board is equipped with an AC-DC switching pow.