It is a Infrared ESP8285 Wireless WIFI Transceiver Module.The esp-01m module with ESP8285 as the core be used as the master control, The program is the same as ESP8266. The module board is equipped with an infrared receiving tube and an infrared transmitting tube which are respectively io14 and io4 controlled, and a burning port is set apart. The demonstration program can read and emit infrared key values and raw codes,user can record infrared remote controls in your home , which can be controlled remotely if connected to the Internet of things platform. Feature: 1.Support Infrared control 2.Support wireless WIFI control 3.Support firmware update Parameter: Model: ESP_IR-TR Work Voltage:DC 5V Work Temperature:-25~85 Work Humidity:5%~95%RH Color: black Material: PCB+ electronic components Update firmware: 1.Connect IO0 and GND pins. 2.Connect module to PC by USB to UART converter. 3.Open software 'FLASH DOWNLOAD TOOLS V3.6.4'. 4.Set parameters. 5.Click START to download firmware. 6.Remove connect between IO0 and GND pins then update complete. Note: When supplying power, you need to look for 5V and GND. The circuit has no reverse connection protection, and the wrong connection may burn the chip. Package Contents: 4 x Wifi Wireless Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.