Product description: Touch e-paper display - 2,13'' 250 x 122 px - black and white - overlay for Raspberry Pi - Waveshare 19493
HAT over lay for Raspberry Pi in the form of capacitive touch e-paper display. It provides up to 5 touch points. This type of display uses electrophoretic microcapsule technology to present images. It provides a wide viewing angle and properly contrasted and clear image. The screen resolution is 250 x 122 px and the diagonal equals 2.13". The overlay from Waveshare can also be used in conjunction with Arduino or STM32.
Touchscreen "e paper" display compatible with Raspberry Pi. Minicomputer is not part of the kit, it can be purchased separately.
Product compatible with Raspberry
The manufacturer provides a product wiki page that includes a user guide and instructions for setting up the display with the minicomputer.
It provides the user with up to 5 touch points, which greatly enhances the user experience of the display.Special features of the capacitive display
- Made in "e paper" technology, displays an image in two colours
- The presented image is devoid of blue glow, which positively affects the recipient's eyesight
- Passive reflective display, providing a wide viewing angle of up to 180°
- Durable screen made of tempered glass
- Can be used as an e-book reader
- Extremely low power consumption and last-read value display even when powered off
- Supports waking up with a user-defined gesture
- Uses SPI interface to connect to controller boards like Arduino or STM32
Pinout description
The overlay can be connected to the Raspberry Pi using 40 GPIO connectors or via a 12-pin cable. In either case, connect the display according to the following relationships:
- VCC - power supply pin 3.3 V
- GND - system ground
- DIN - MOSI pin of SPI communication interface
- CLK - SCK pin of SPI communication interface
- CS - Chip Select
- DC - data / command select pin
- RST - external RESET pin
- INT - touch controller interrupt pin
- SCL - I2C touch controller clock pin
- SDA - I2C touch controller data pin
- TRST - touch controller RESET pin
The module has pins with markings, which should be connected according to described relations.
Module dimensions are 69,15 x 38,9 mm.Technical specification of the display from Waveshare
- Type: HAT overlay - capacitive display
- Technology: E-paper
- Touch screen: yes
- Touch points: 5
- Supply voltage: 3,3 V
- Communication interface: SPI 3-wire / SPI 4-wire
- Screen resolution: 250 x 122 px
- Diagonal: 2.13"
- Pixel size" 0.194 x 0.194 mm
- Displayed colors: black and white
- Grayscale: 2
- Full refresh time: 2 s
- Refresh power: 26.4 mA
- Viewing angle: > 170°
- Display dimensions: 48.55 x 23.7 mm
- Module dimensions: 69.15 x 38.9 mm
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