Overview1. This is a universal driver board for e-Paper raw panels, thanks to the dual wireless features - WiFi & Bluetooth - it is easy to display images from PC / smart phone via WiFi or Bluetooth.2. Furthermore, it can also be used for Arduino development, just like any other normal Arduino board.Features1. Onboard ESP32, supports Arduino development2. Provide Android APP, allows to refresh display content via Bluetooth EDR3. Provide HTML host code, allows to refresh display content via remote webpage, suit for Internet applications4. Support Floyd-Steinberg dithering algorithm, more color combinations, better shadow rendering for the original image5. Support popular image formats: BMP, JPEG, GIF, PNG, etc.6. Easy to be integrated into wireless applications7. Come with e-Paper driver (open source)8. Come with development resources and manualSpecifications1. WiFi protocol: 802.11b/g/n2. Bluetooth protocol: 4.2, includes traditional BR/EDR, and low power BLE3. Interface: 3-wire SPI, 4-wire SPI (default)4. Operating voltage: 5V5. Operating current: 50mA ~ 150mA6. Outline dimension: 29.46mm x 48.25mmPackage Contents1. e-Paper ESP32 Driver Board x12. e-Paper Adapter x13. 24PIN FFC x1Note: e-Paper panels in the photos are NOT included.