4 Channel Relay Module 30A Dc7-28/5V Wifi Bluetooth Relay Module Esp32-Wroom Development Board 4853066958275

4 Channel Relay Module 30A Dc7-28/5V Wifi Bluetooth Relay Module Esp32-Wroom Development Board 4853066958275

1. The 4-channel 30A relay development board is a development board based on the ESP32-WROOM-32E module 2. I/O ports are fully led out, supporting...

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