4 Channel Relay Module 30A Dc7-28/5V Wifi Relay Module Esp32-Wroom Development Board 6031902585023

4 Channel Relay Module 30A Dc7-28/5V Wifi Relay Module Esp32-Wroom Development Board 6031902585023

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1. The 4-channel 30A relay development board is a development board based the ESP32-WROOM-32E module 2. I/O are fully led out, supporting DC7-28V/5V...

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