ESP8266 5V 10A 7-30V Network Relay WIFI Module NEW U8

Product description：
LC 5V WiFi relay module carried a ESP8266 WiFi module and microcontroller.It will send the serial port instructions to the cell phone APP and Implementation within the local area network (LAN) for wireless control relay.

Name: Relay Module
Model: 582804
Material: plastic，metal
Size: 45*28mm
45*28mm

The function and characteristics

1. Onboard ESP8266 wifi module,In AP mode, it can be connected by 5 clients at the same time;

2. Wifi relay module has two work modes:
(1)cell phones carry on the wifi module directly;
(2)cell phone and wifi module carry on the same ;

3. Transmission distance:
(1) In the open environment, the maximum transmission distance is 400m when the cell phone carry on the wifi module directly ;
(2) when the wifi module and cell phone carrying on the same ,the transmission distance depend on the ’s signalintensity;

4. Onboard 5v, 10 A / 250 v AC 10 A / 30 v relay, absorb 100000 times continuously;
Module with diode effusion protection, short response time;

The board function description:
IN +,IN-: 5V input;
TX ,RX and GND: serial port debug pins;

Instructions：

1. Onboard the ESP8266 wifi module has three work modes: STA (client), AP (hot), STA + AP( hot +client), According to the work mode of wifi relay module to choose the corresponding mode of ESP8266 wifi module .

2. Module need configuration by serial debugging software and USB to TTL module send serial command , TX ,RX ,GND pin of USB to TTL module connect to RX ,TX ,GND pin of ESP8266 relay module,and IN+,IN- connect to DC5V .

3. The default Baud rate of wifi module maybe is 115200 or 9600,you can send AT command change it,such as: AT+CIOBAUD=115200. I recommend you use 115200 in general conditions, but you should change it to 9600 when you use cell phone control the relay(because the Baud rate of on board MCU STC15F104W is 9600).

Package Included:
1 x Relay Module

Kindly Remind:

1. Wifi relay module need to reconfigure if restart

2. ESP8266 wifi module has a timeout mechanism, when the cell phone haven’t sent commands to the ESP8266 wifi module over a period of time (default is 180s) , the ESP8266 wifi module will kick off your cell phone, you can send
AT + CIPSTO = on the PC to modify this time (time range 0-7200), such as: AT + CIPSTO = 3600.

3. If it not return OK and just return what you’ve sent commands when you use “USR-TCP232--V1.3” configure the wifi module,you can press the ENTER before send commands

4. If it no response when you use “USR-TCP232--V1.3” configure the wifi module, maybe the baud rate is incorrect,You can try 115200 or 9600. but when you use cell phone control the relay, you must make sure the baud rate of wifi module is 9600(send AT+CIOBAUD=9600 can change it),because the baud rate of onboard MCU(STC15F104W) is 9600

5.If you want to use a computer to control relay directly(baud rate is 9600), you can unplug the ESP8266 wifi module,and TX ,RX ,GND pin of USB to TTL module connect to TX ,RX ,GND pin of wifi relay module, IN+ and IN- connect to DC5V . Send serial command(A00101A2 open relay; A00100A1 closed relay,command format must be ) with serial debugging software on the PC to control the relay.
6.If the relay can’t open or close,maybe you need remove the R4, and use the USB to TTL module’s VCC pin connect to relay module’s 5V pin.








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