The Waveshare 29790 is the (10.85inch e-Paper HAT+) which is a black/white 0.85inch e-Paper e-Ink display with SPI Interface and Driver Hat.
Part No.:10.85inch e-Paper HAT+ is the device which is supplied.
* for reference only, the Raspberry Pi is NOT included.
Low power, wide viewing angle, paper-like effect without electricity
Ideal for price tags, shelf labels, industrial instruments.


Features at a glance
- No backlight, keeps displaying last content for a long time even when power down
- Ultra-low power consumption, basically power is only required for refreshing
- Comes with online development resources and manual (e-Paper Driver HAT circuit diagram, examples for Raspberry Pi / Jetson Nano / Arduino / STM32 / ESP32)
Optional for e-Paper Driver HAT:
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
- Adopts Raspberry Pi HAT+ standard to improve interoperability, helping the users to design and develop faster, easy to use with other peripherals and extend more functions for Raspberry Pi
- Adapting SPI interface for connecting with controller boards like Raspberry Pi / Arduino / STM32 / ESP32, etc.
- Onboard voltage translator, compatible with 3.3V / 5V MCUs
Specifications
Operating voltage |
Raw display: 3.3V |
Display color |
Black/White |
with driver HAT: 3.3V/5V |
|||
Interface |
3-wire SPI, 4-wire SPI |
Grey scale |
2 |
Outline dimensions |
Raw display: 270.56 × 105.92 × 1.20 (mm) |
Partial refresh time |
0.6s |
e-Paper Driver HAT: 65.00 × 30.50 (mm) |
Full refresh time |
3.5s |
|
Display size |
259.76 × 91.68 (mm) |
Refresh power |
<50mW |
DOT PITCH |
0.191 × 0.191 (mm) |
Standby current |
<0.01uA |
RESOLUTION |
1360 × 480 pixels |
Viewing angle |
>170° |
the principle is: charged particles suspended in clear fluid will move to sides of microcapsule when electric field is applied, making the microcapsule become visible by reflecting ambient light, just as traditional printed paper.
E-paper display will clearly display images/texts under lamplight or natural light,
requires no backlight, and features nearly up to 180° viewing angle. It is usually used as
e-reader due to its paper-like effect.

Optional for e-Paper Driver HAT
Standard Raspberry Pi 40PIN GPIO header, compatible with Raspberry Pi
series boards, Jetson Nano
Onboard SPI Control Interface
For use with Controller Boards like Raspberry Pi / Jetson Nano / Arduino / STM32 / ESP32
PWR |
Power control pin |
BUSY |
Busy status output |
RST |
External reset, low active |
DC |
Data / Command selection (high for data, low for command) |
CS_S |
e-paper S area chip selection, low active |
CS_M |
e-paper M area chip selection, low active |
SCLK |
SPI SCK pin |
DIN |
SPI MOSI pin |
GND |
Ground |
VCC |
3.3V/5V |
Onboard Voltage Translator
Compatible With 3.3V / 5V MCUs
WIKI: 10.85inch_e-Paper_HAT+