Product description: E-Ink E-paper display - 3,7'' 480 x 280 px - SPI - black and white - for Raspberry Pi Pico - Waveshare 20123
A compact e-paper display - extension for Raspberry Pi Pico manufactured by Waveshare. Screen diagonal is 3.7'', resolution is 480 x 280 px and pixel size is 0.169 x 0.169 mm. The image is presented in two colors: black and white, with a gray scale of 4. The module features low power consumption and fast refresh times (full and partial). It uses SPI buses to communicate with Raspberry Pi Pico.
Spacer sleeves are also included.Special features of the display from Waveshare
- Use of e-paper technology, which is used in e-book readers
- Display of the last image even after disconnecting the power supply
- Low power consumption, power consumption for refreshment only
- SPI communication interface
- Programmed with C/C++ and MicroPython
- Image displayed in two colors: black and white with grayscale 4
- Built-in voltage regulator
- Compatible with other boards e.g. Raspberry Pi, Jetson Nano, Arduino, STM32
Contents of the kit
- E-paper E-Ink display - 3,7'' 480 x 280 px - SPI - black and white - for Raspberry Pi Pico - Waveshare 20123
- Spacers - 4 slots
What is an "e ink e paper" display?
An e-paper display, also known as an electronic paper (e paper display) uses electrophoretic microcapsule technology to present data. This means that it mimics the appearance of standard ink found on traditional paper. This type of technology is extremely user-friendly - the screens emit no blue glow, are passively reflective and provide a wide viewing angle. All these features make our eyesight less fatigued during use, and reading gives us even more pleasure than before.
Differences in displaying content on various types of screens.
Image displayed in two colors: black and white.Technical specifications of the display
- Compatible with: Raspberry Pi Pico
- Display type: e-paper
- Operating voltage: 3.3 V / 5 V
- Display diagonal: 3,7''
- Resolution: 480 x 280 px
- Pixel size: 0.169 x 0.169 mm
- Communication interface: 3-wire SPI, 4-wire SPI
- Displayed colors: black and white
- Gray scale: 4
- Full refresh time: 3 s
- Partial refresh time: 0.3 s
- Refresh power: 26.4 mW
- Standby current: <0.01 µA (almost none)
- Viewing angle: >170°
- Display dimensions: 81.12 x 47.32 mm
- Module dimensions: 95,3 x 56,9 mm
Pinout and description
The display has pinouts in the form of female connectors for easy connection with the Raspberry Pi Pico. Among the pins are:
- VSYS - power supply pin (default)
- 3V3 - 3.3V power supply pin
- GND - chip ground
- e-Paper_DC - pin select: data / commands (high state: data; low state: commands)
- e-Paper_CS - chip select (activated by low state)
- e-Paper_SCK - SPI bus SCK output
- e-Paper_DIN - MOSI data output of SPI bus
- e-Paper_RST - RESET pin (activated by a low state)
- e-Paper_BUSY - Busy pin
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Compatible with Raspberry Pi Pico |
Display pinouts.
Useful links |
