1.Description:
   This ESP8266 WIFI 8-Channel Relay Module ESP-12F Development Board is perfect for Arduino development environment with reference code and is suitable for ESP8266 secondary development and learning, smart home wireless control and other occasions.

  It is an ideal solution for home automation, remote control, sensor networks, industrial control, and other IoT applications. The 8-channel relay can be controlled by WiFi Net, iOS/Android App, and web page. It can be used to control lights, electrical equipment and other appliances remotely.

  The product is easy to set up and use, and comes with a detailed user manual. It has an integrated high-precision 10A AC/DC dual-channel optical coupling isolation module and a power-on self-test function. With this product, you will enjoy the convenience of smart home control.

2.Feature:
  1>.Onboard mature and stable ESP-12F WIFI module, large capacity 4M BYTE FLASH;
  2>.The power supply mode supports DC7-28V/5V;
  3>.The onboard WiFi module RST reset button;
  4>.ESP-12F supports development tools such as Eclipse/ArduinoIDE, and provides reference programs for Arduino development environment;
  5>.Provide reference programs under the Arduino development environment;
  6>.There are 8 channel  5V relays on board, which output switch signals, suitable for controlling loads whose working voltage is within AC250V/DC30V;
  7>.Onboard power indicator and relay indicator.

3.Parameter:
  1>.Work voltage: DC 5V/DC 7-28V
  2>.Work Temperature:-25℃~85℃
  3>.Work Humidity:5%~95%RH
  4>.Size:149*80mm

4.Burning port:
  The GND, RX, TX, and 5V of ESP8266 are respectively connected to the GND, TX, RX, 5V, of the external TTL serial port module, IO0 needs to be connected to GND when downloading, and then disconnect the connection between IO0 and GND after downloading.

5>.Package:
   1pcs ESP8266 8 Channel Relay Development Board
   1pcs 8p single pin
   1pcs Short-circuit cap