It is an Infrared ESP8285 Wireless WIFI Transceiver Module. The ESP-01M module features the ESP8285 as the core and can be used as the master control. It is compatible with ESP8266. The module board includes an infrared receiver and an infrared transmitter, controlled by IO14 and IO4 respectively, and has a dedicated programming port. The module can read and emit infrared key values and raw codes, allowing it to record infrared remote control signals. When connected to an IoT platform, it enables remote control functionality. Features: 1. Supports infrared control 2. Supports wireless WIFI control 3. Supports firmware update 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, locate the 5V and GND pins. 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 conditions and monitor settings may cause slight variations in the color of the item shown in images compared to the actual product. Measurement tolerances are +/- 1-3 cm.