DC5V ESP8266 Four Channel Wifi Relay IOT Smart Home Phone APP Remote Control Switch

Instruction Click here to openDescription 5V ESP8288 four ways WiFi relay module carried a ESP 01 WiFi module and mature 8 bit MCU It could control the relay by cell phone APP within the local area network LAN It is easy to set Function features 1 On board high quality MCU and ESP 01WIFI module2 Two working mode Mode 1 cellphone carry on wifi module directlyMode 2 cellphone and wifi module carry on router togetherAdditional function work as USB module when disconnect ESP 01 module3 Transmission distance 1 The open environment the mobile phone when carrying on the WIFI module maximum transmission distance of 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 signal4 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 off5 The board contains 5V 10A 250V AC 10A 30V DC relay which can continuously absorb 100 000 times with the protection of diode current and short response time 6 With mode option and working statue LED indicator7 With 4 isolator and strong anti interference ability8 Reserved UART debug interface and MCU download port for program9 Board size 60 63mm Interface IN IN 5V voltage input5V GND TX RX UART serial port PINSWIM PIN8 NRST reserved MCU download portButton S1 change mode default mode is mode