DC 5-30V ESP32 WIFI Bluetooth BLE 8 Channels Relay ESP32-. Development Board
18,12 €
Onboard mature and stable ESP32-//-32E module, large-capacity 4M Byte Flash;. 4, Onboard ESP32 module IO0 programmable button and reset button;. 7, 1 programmable LED and relay indicator onboard. hope you could understand.
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