1 2 4 Channel5V Relay Module ESP-12F Development Board for Arduino Raspberry DIY
ab 6,80 €
Interface introduction. On-board power indicator, 1 programmable LED and relay indicator. On-board mature and stable ESP-12F WiFi module with large capacity 4M Byte Flash;. UART program download port: ESP8266's GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5V of the external TTL serial port module.
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