Features: This is an IR-infrared ESP8285 wireless WiFi transceiver module. Support infrared-control, wireless WIFI control and firmware update. When supplying power, it is necessary to identify 5V and GND-pin, and the circuit has no reverse connection protections, wrong connection may burn the chip. The ESP-01M module with ESP8285 as the cores be used as main control, The program is the same as ESP8266. The module board is equipped with infrared receiving tube and infrared transmitting tube controlled by io14 and io4 respectively, and is equipped with combustion port. The demo program can read and transmit infrared key-values and original codes. Users can record infrared remote control home. If connect to the Internet of Things platform, they can control them remotely. Specifications: Material: Printed Circuit Board Size: about 2.34x2.34cm/0.92x0.92inch Parameters: Work Voltage: DC5V Work Temperature: -25~85 Work Humidity: 5%~95%RH Update Firmware: 1.Connection IO0 and GND-pin. 2.Connection module to PC by USB to UART converter. 3.Open-software 'FLASH DOWNLOAD TOOLS V3.6.4'. 4.Set parameters. 5.Clicks START to download firmware. 6.Remove connect between IO0 and GND-pin then update complete. Note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitors resolution. Package includes: 1x ESP8285 Wireless WiFi Transceiver Module