Description
Specifications:Board size :60*63mmInterface on board :IN+、IN-:5V voltage input ;5V、GND、TX、RX:UART serial port PIN ;SWIM、PIN8、NRST:reserved MCU download port 。Button S1:change mode ,default mode is mode 1Button S2:resetLED D1/D2/D3/D4(red ):relay working LED,LED on when relay is onLED D7(red ):indicator for mode 1LED D5(blue):indicator for mode 2LED D6(green ):work statue indicator ,exact details as below :(1)When extinguished, it is being configured or disconnected from the router.(2)0.5s fast blinking represents cellphone app is configuring WIFI account and password for ESP-01 module(3) 2S slow blinking to configure finished ,and wait for connection with cellphone by TCP(4)LED always on represents TCP connections with mobile phone successfullyConnection for reserved two cap jumper :Generally ,insert them to bottom ,that is RX to RX1,TX to TX1 rt them to upper ,when use it as USB moduleCOM1 COM2 COM3 COM4 :Common terminal ;NC1 NC2 NC3 NC4 :normal closeNO1 NO2 NO3 NO4 :normal openControl command for relay (hex format ):Open relay 1 :A0 01 01 A2Close relay 1 :A0 01 00 A1Open relay 2 :A0 02 01 A3Close relay 2:A0 02 00 A2Open relay 3 :A0 03 01 A4Close relay 3 :A0 03 00 A3Open relay 4 :A0 04 01 A5Close relay 4 :A0 04 00 A4Package Included:1x 5V ESP8266 Four Channel Wifi Relay IOT Smart Home Cellphone APP Remote Control Tips: All of the following are used to control the first 2 relay in the mobile phone APP. The third and fourth way are the same, except that the relay control instructions are different.