DC5-80V Power Supply ESP8266 WiFi Single-Channel Relay Module ESP-12F

• VCC, GND: DC8-80V Power Supply
• MICRO USB: DC5V power supply via USB. Note: Choose one of three power supply options DC8-80V/DC5V USB/pin 5V
• 6X6MM button: ESP8266 reset button
• Program upload DART 0: GND, RX, TX and 5V of the ESP8266 connect to the external TTL respectively. The Serial Port Module GND, TX, RX, 5V, 100 must be connected to GND during the upload and disconnected after the upload.
• GPIO Output: GPIO output port
• Relay Output: NC: Normally closed terminal, the relay is connected to COM before connection and disconnected after connection. COM: Common terminal; NO: The relay is disconnected before activation and connected to COM after activation.
• Power Indicator: L ED
• Programmable L ED: Uses GPO16 for control.
• Relay Indicator: The indicator lights up during activation.