Welcome to the store! 1. Onboard ESP32: The driver board features an onboard ESP32, allowing you to receive image information via WiFi or Bluetooth from a PC or smartphone and display it on the electronic ink screen. 2. Remote Display Content: The e-paper driver can update display content remotely via a webpage for easy integration into various web applications and can update display content via Bluetooth EDR for simple operation. 3. Supports Multiple Image Formats: The e-paper driver supports many popular image formats, such as BMP, JPEG, GIF, and PNG. 4. Scope of Application: The e-paper driver with ink screen is suitable for wireless image sweeping application scenarios, such as electronic price tags for supermarkets, electronic business cards, serial information boards, etc. 5. Color Combinations: Utilizes a dithering algorithm to achieve more color combinations and better shadow reproduction of the original image. Item Type: E Paper Wireless Network Driver Board Material: PCB Model: For E Paper ESP32 Driver Board WiFi Standard: 802.11b/g/n Bluetooth Standard: Bluetooth 4.2, including traditional Bluetooth (BR/EDR) and Low Power Bluetooth (BLE) Communication Interface: 3 Wire SPI, 4 Wire SPI (default) Operating Voltage: 5V 1 x E Paper Wireless Network Driver Board Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!