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 module 2. Module has 2 kinds of work patterns: Mode 1: The phone is directly mounted on the WIFI module Mode 2: Mobile phones and WIFI modules are also equipped on the router Additional features: Can also be used as a USB relay with unplugged ESP-01 3. 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 router 4. 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 memory 5. 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 indicator 7. Reserved UART debug interface and STM8 SWIM program download interface 8. Board size: 57.4 * 29mm 9. Information link: https://pan.baidu.com/s/1qYmMTu0 Interface: IN + IN-: 5V power input TX, RX: UART serial port pin 5V, GND, SWIN, NRST: STM8S microcontroller program download port LED D2 (RED): relay work light, when it is lit. KEY S1: mode switch, the default mode 1 KEY S2: Restore factory settings LED D7 (RED): Mode 1 indicator LED D5 (BLUE): Mode 2 indicator LED D6 (GREEN): working status indicator, described as follows: (1) is extinguished when the router is self-configuring or losing connection; (2) 0.5S flashing time waiting for the phone APP for the ESP-01 module configuration WIFI account and password; (3) 2S slowly blinking when the configuration is complete, waiting to establish a TCP connection with the phone; (4) Always on behalf of the successful establishment of mobile phones and TCP; connection Reserved 2 Jumper Caps: Insert both ends of the jumper cap (RX connect RX1, TX connect TX1) during normal use. To debug the ESP-01 module by using a USB-to-TTL serial port module, plug it into the top (Or may have interference) COM: public end NO: normally open, the relay before hanging open, pull and COM shorted NC: normally closed end, the relay is shorted to COM before pull-in and is dangled after pull-in Relay Control Instructions (hexadecimal HEX form): Turn on the relay: A0 01 01 A2 Close the relay: A0 01 00 A1 Package included: 1 x Upgrade 5V ESP8266 WiFi Relay Switch