It is an Infrared ESP8285 Wireless WiFi Transceiver Module. The ESP-01M module features the ESP8285 as the core processor and functions similarly 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. When connected to an IoT platform, it enables remote control of infrared devices. Features: 1. Supports infrared control 2. Supports wireless WiFi control 3. Supports firmware updates Specifications: Model: ESP_IR- Operating 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 the IO0 pin to GND. 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 appropriate parameters. 5. Click to download the firmware. 6. Disconnect IO0 from GND after the update is complete. Note: When powering the module, ensure correct connection of 5V and GND. The circuit does not have reverse polarity protection; incorrect wiring may damage the chip. Package Contents: 1 x WiFi Wireless Module Only the items listed above are included. Other accessories are not included. Note: Lighting conditions and monitor settings may cause slight color differences between the image and the actual item. Measurement tolerances are +/- 1-3 cm.