1. The electronic ink screen uses "microcapsule electrophoretic display" technology for image display. Its working principle involves charged nanoparticles suspended in liquid migrating under the influence of an electric field. Under ambient light, reflection creates a display effect close to traditional printed paper. Electronic ink screens can clearly display images under ambient light such as lamps or natural light without requiring backlighting, with a viewing angle of nearly 180 degrees. Due to their display effect comparable to traditional paper, they are commonly used in applications like e-readers.
2. No backlight is required; the last screen content can be maintained for a long time after power-off.
3. Very low power consumption, with power usage occurring primarily during refresh cycles.
4. Comprehensive supporting documentation provided: Driver board schematic, sample programs for Raspberry Pi / Jetson series / Arduino / STM32 / ESP32, etc.
5. The following features apply only to the module version (i.e., including the Driver HAT):
--Designed based on Raspberry Pi 40PIN GPIO interface, compatible with Raspberry Pi and Jetson series motherboards.
--Pre-reserved SPI communication interface for easy connection to master control boards like Raspberry Pi / Arduino / STM32 / ESP32.
--On-board level conversion chip compatible with 3.3V and 5V level interfaces.
Parameters:
1. Operating voltage: Bare screen version: 3.3V; Module With Driver HAT version: 3.3V to 5V.
2. Communication interface: 3-wire SPI, 4-wire SPI.
3. Dimensions: Bare screen size: 126.38 x 71.19 x 0.79 mm; Driver HAT size: 30.50 x 65.00 mm.
4. Display size: 110.59 x 62.65 mm.
5. Pixel pitch: 0.1833 x 0.1833 mm.
6. Resolution: 960 x 552 pixels.
7. Display colors: Black, white.
8. Gray levels: 2.
9. Partial refresh: 0.7 s.
10. Full refresh: 1.8 s.
11. Refresh power consumption: Less than 50 mW.
12. Sleep current: Less than 0.01 microampere (close to zero).
13. Viewing angle: Greater than 170 degrees.