Description:

The ESP8266 single-channel relay development board is equipped with ESP-12F WiFi module, I/OD all leads, and supports AC90-250V/DC7-12V/USB 5V and other power supply methods. Provide Ardu jino development environment reference code, suitable for ESP8266 secondary development learning, smart home wireless control and other occasions

Specification:

1. Onboard mature and stable ESP-12F WiFi module, large capacity 4M Byte Flash

2. The I/O port of the WiFi module and the UART program download port are all led out to facilitate secondary development

3. Onboard AC-DC switching power supply module, power supply mode supports AC90-250V/DC7-12V/USB5V

4. Onboard WiFi module RST reset button

5. ESP-12F supports the use of Eclipse/Arduino IDE and other development tools, and provides reference programs under the Arduino development environment;

6. Onboard 1 way 5V relay, output switch signal, suitable for controlling load within AC 250V/DC30V

7. Onboard power indicator, 1 programmable LED and relay indicator

Interface description:

1, L, N: AC90-250V power supply

2, AC90-250V to DC5V switching power supply (when using AC power supply, please do not touch it directly with your hands!!)

3. VCC, GND: DC7-12V power supply;

4. Micro USB: DC5V USB power supply;

Note: AC90-250V, DC7-12V, DC5V USB can choose one of the three power supply modes.

5, 6X6mm buttons: ESP8266 reset button;

6, 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, I00 needs to be connected to GND when downloading, and then disconnect the I00 and GND after the download is complete connection;

7, GPI0 pin header lead out port;

8, Relay output:

Normally closed, the relay is short-connected with COM before the pull-in, and left floating after pull-in;

COM: public end;

NO: Normally open terminal, the relay is suspended before being closed, and shorted to COM after being closed.

9, Power indicator LED;

10. Programmable LED;

11. Relay indicator LED: lights up when it is closed.

Package included:

1 × ESP8266 WiFi Single Channel Relay Module