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Product description: E-paper Hat (F) 4.01'' 640×400px - seven color display module - Raspberry Pi overlay - Waveshare 19283
E-paperdisplay with4.01'' screen diagonal and640×400 pxresolution asRaspberryoverlay. Overlay works with3.3Vand5V, communicates through SPI interface. The e-paper displays are not tiring to the eyes. Another advantage of this technology is very low power consumption. Current consumption instandbymode is below0.01 uA. The board is equipped with40-pinGPIO compatible socket for Raspberry Pi minicomputers. There are four configuration buttons on the board. The display can be successfully connected to other minicomputers usingSPIinterface and8-pinconnector on the board. Its pinouts are described in the table below.
The display is an overlay for Rapsberry Pi. Minicomputer must be purchased separately.
| Pin | Description |
|---|---|
| VCC | Supply voltage 3.3 V / 5 V. |
| GND | Circuit ground. |
| DIN | MOSI pin of SPI interface. |
| CLK | SPI interface clock pin. |
| CS | Chip select activated by a low state. |
| DC |
Data / command selection. High state - data. Low state - commands. |
| RST | External reset activated by a low state. |
| BUSY | Busy status output, activated by low state. |
Display with 640 x 400 px resolution.
What is special about E-Ink technology?
E-Inkdisplays use electrophoretic microcapsules. Charged particles suspended in a transparent liquid move whenan electric fieldis applied, making them visible, just like on a normal printed page. E-Ink displays do not require additional backlighting and the viewing angle of the displayed elements reaches approx.180°.
Application of e-paper displays
E-paper displays are commonly used in shops and warehouses as pricetagsand key product information. They can also be successfully used as room or positionmarkersin offices and offices. Thee-paperscreensdo not tirethe eyesight, thanks to which they are often used in e-book readers.
The overlay has been equipped with distances for easy assembly.
Dimensions of the overlay.
Technical specification
- Module compatible with Arduino and Raspberry
- Supply voltage: from 3.3 V to 5 V
- Power supply (at screen refreshment): 50 mW
- Interface: SPI
- Gray level: 2
- Display colors: ACeP 7-color
- Refresh time: 15 s
- External dimensions: 98.5 x 70 mm
- Display dimensions: 86.4 x 54 mm
- Pixel size: 0.135 x 0.135 mm
- Resolution: 640 x 400 px
- Viewing angle: more than 170°.
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