DollaTek 5V ESP8266 ESP-01 2 Channel WiFi Relay Module 2-Channel Relay Module For IOT Smart Home Phone APP Controller(With ESP8266)

• The function and characteristics:On-board N76E003/STM8S003 and ESP-01 WIFI module
• Having two modes:Mode 1: Cell phones carry on the wifi module directly.Mode 2: Cell phone and wifi module carry on the same router Additional function: As an USB relay module when unplug the ESP-01
• Transmission distance:In the open environment, the maximum transmission distance is 100m whenthe cell phone carry on the wifi module directly ;When the wifi module and cell phone carrying on the same router ,the transmission distance depend on the router’s signal intensity
• Use Smartconfig technology of ESP8266 to configurate the password for the ESP-01 module with APP
• On-board 5V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times continuously, Module with diode effusion protection, short response time On-board model selection and working position indicator LED On-board preserved UART debug interface and MCU program interface

Overview: 5V ESP8266 2-channel WIFI relay module equip with to ESP-01 WIFI module and 8 bit high performance MCU, Only need simple configurations and then you can control the relay with cellphone APP under LAN area. Interface and sources： Size：59*40mm IN+、 IN-：5V power input TX、 RX： UART communication SWIM、 NRST：MCU program interface S1：Mode selection key, default is mode 1 S2：Restore key LED D2 and D4（red）：Relay indicator LED D7（red）： Mode 1 indicator LED D5（blue）： Mode 2 indicator LED D6（green）：Working state indicator，the description of D6 as below： (1)It’s means internal self-configuration or lost connection with the router when D6 off (2)It’s means the ESP-01 are waiting for the APP configurate the password for it when D6 fast blink every 0.5S (3)It’s means the whole configuration is done and waiting for establishing TCP connection with APP when D6 slow blink every 2S (4) It’s means the TCP connection between ESP-01 and APP is OK when D6 on all the time. Package Included: 1x 5V 2-Channel WIFI Relay Module