It is an Infrared ESP8285 Wireless WIFI Transceiver Module. The ESP-01M module features the ESP8285 as the core, similar to the ESP8266. The module board includes an infrared receiver and an infrared transmitter controlled by IO14 and IO4 respectively, and has a dedicated programming port. This module can read and emit infrared key values and raw codes, allowing it to record infrared remote control signals. It can be remotely controlled when connected to an IoT platform. Features: 1. Supports infrared control 2. Supports wireless WIFI control 3. Supports firmware updates Parameters: Model: ESP_IR- Working Voltage: DC 5V Operating Temperature: -25°C to 85°C Operating Humidity: 5% to 95% RH Color: Black Material: PCB + electronic components Firmware Update Instructions: 1. Connect IO0 and GND pins. 2. Connect the module to a PC using a USB to UART converter. 3. Open the software 'FLASH DOWNLOAD TOOLS V3.6.4'. 4. Set the required parameters. 5. Click to download the firmware. 6. Disconnect IO0 from GND to complete the update. Note: When powering the device, ensure correct connection of 5V and GND. The circuit does not have reverse polarity protection; incorrect connections may damage the chip. Package Contents: 1 x WiFi Wireless Module Only the above items are included; others are not. Note: Lighting effects and display differences may cause slight variations in color. Measurement tolerance is +/- 1-3 cm.