12V ESP8266 Four Ways WiFi Relay IOT Smart Home Cepphone APP Remote Control

Description

12V ESP8266 Four Ways WiFi Relay IOT Smart Home Cepphone APP Remote Control
Two working mode : Mode 1:cellphone carry on wifi module directly Mode 2: cellphone and wifi module carry on router together Additional function :work as USB module when remove ESP-01 module
Transmission distance: (1) the open environment, when the mobile phone carrying on the WIFI module ,maximum transmission distance is 100 m; (2), when the WiFI module and cell phone carrying on the router at the same time, the signal transmission distance depends on router signal
Use the Smartconfig technology to complete the configuration of the account and password of the esp-01 WIFI module on the mobile APP. The configured account and password will be memorized after power off
The board contains 12V,10A/250V AC 10A/30V DC relay, which can continuously absorb 100,000 times, with the protection of diode current and short response time.
With mode option and working statue LED indicator.With 4 isolator and strong anti interference ability.Reserved UART debug interface and MCU download port for program
Interface 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 1
Button S2:reset
LED D1/D2/D3/D4(red ):relay working LED,LED on when relay is on
LED D7(red ):indicator for mode 1
LED D5(blue):indicator for mode 2
LED D6(green ):work statue indicator ,exact details as below:
When extinguished, it is being configured or disconnected from the router.
0.5s fast blinking represents cellphone app is configu WIFI account and password for ESP-01 module
2S slow blinking to configure finished ,and wait for connection with cellphone by TCP
LED always on represents TCP connections with mobile phone successfully
Connection for reserved two cap jumper:
Generally ,insert them to bottom ,that is RX to RX1,