Upgrade 5V ESP8266 WiFi Relay IoT Smart Home Phone APP Remote Control Switch

Features 1 On board high performance microprocessor STM8S103 and ESP 01 WIFI module2 Module has 2 kinds of work patterns Mode 1 The phone is directly mounted on the WIFI moduleMode 2 Mobile phones and WIFI modules are also equipped on the routerAdditional features Can also be used as a USB relay with unplugged ESP 013 Transmission distance 1 In the open condition the maximum stable transmission distance when the mobile phone is mounted on the WIFI module is 100m 2 When the WIFI module and mobile phone are also equipped on the router the transmission distance depends on the strength of the router4 Smartconfig technology in the mobile phone APP to complete the ESP 01 WIFI module account and password configuration configured account and password with power off memory5 On board 5V 10A 250V AC 10A 30V DC relay continuous pull 100 000 times with diode effusion protection short response time 6 On board mode selection and real time working status indicator7 Reserved UART debug interface and STM8 SWIM program download interface8 Board size 57 4 29mm9 Information link https pan baidu com s 1qYmMTu0Interface IN IN 5V power inputTX RX UART serial port pin5V GND SWIN NRST STM8S microcontroller program download portLED D2 RED relay work light when it is lit KEY S1 mode switch the default mode 1KEY S2 Restore factory settingsLED D7 RED Mode 1 indicatorLED D5 BLUE Mode 2 indicatorLED D6 GREEN working status indicat