ESP8266 WIFI 4 Channel Relay Module 30A ESP-12F Development Board For Arduino D
15,86 €
On-board mature and stable ESP-12F WiFi module, large capacity 4M Byte Flash;. There are 4 5V/30A relays on board, which output switch signals, which. WiFi module, all I/O ports are led out, and it supports DC7-28V/5V power.
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