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.Onboard ESP32, supports for development. Provides Android APP, allows to refresh display content via Bluetooth Provides HTML code, allows to refresh display content via remote webpage, suit for Internet applicationsSupports Floyd- dithering algorithm, more color combinations, better shadow rendering for the raw imageSupports image formats: BMP, JPEG, GIF, PNG, etc.Easy to be integrated into wireless applicationsComes with e-Paper driver ()Comes with development resources and manualWiFi protocol: 802.11b/gBluetooth protocol: 4.2, includes BR/, and low power Interface: 3-wire SPI, 4-wire SPI (default)Operating voltage: 5VOperating current: 50mA ~ 150mAcolor:BlueMaterial:PCBsize:29.46mm x 48.25mmPackage Contents:1 x e-Paper ESP32 Driver Board1 x e-Paper Adapter1 x 24PIN FFC