[my characteristics]
Onboard esp32, supporting Arduino development
Provide Android mobile app program, which can update the display content through Bluetooth EDR for easy use
Provide HTML host computer program, which can remotely update the display content through web pages, so as to facilitate integration into various network applications
Support Floyd Steinberg dithering algorithm to obtain more color combinations and better shadow rendering of the original image
Support a variety of common image formats (BMP, JPEG, GIF, PNG, etc.)
Factory built-in electronic ink screen driver (open source)
Provide complete supporting data manual
[my parameters]
WiFi standard: 802.11b/g/n
Bluetooth standard: 4.2, including traditional Bluetooth (BR / EDR) and low power Bluetooth (ble)
Communication interface: 3-wire SPI, 4-wire SPI (default)
Working voltage: 5V
Working current: 50mA ~ 150mA
Overall dimension: 29.46mm x 48.25mm