Wave 2.9" E-Ink Flex Display for Pi

This is a flexible E-Ink display. Compared with normal e-Paper panels, this flexible panel allows bending without being damaged, and it's thinner and lighter.
Combined with the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications where curved surface display is required, such as industrial instruments, smart wearable-devices, and so on.

Quick Spec

• Operating Voltage: 3.3V
• Interface: 3-wire SPI, 4-wire SPI
• Outline Dimension: 79 × 36.7 × 0.34mm
• Display Size: 66.9 × 29.06mm
• Dot Pitch: 0.227 × 0.226
• Resolution: 296 × 128
• Display Colour: black, white
• Grey Level: 2
• Full Refresh Time: 2s
• Refresh Power: 26.4mW(typ.)
• Standby Power: <0.017mW
• Viewing Angle: >170°

Interface

Demo Code

/**
 *  @filename   :   epd2in13-demo.ino
 *
 * Demo Code for Arduino
 */

#include 
#include "fepd2in13.h"
#include "imagedata.h"

/**
  * Due to RAM not enough in Arduino UNO, a frame buffer is not allowed.
  * In this case, a smaller image buffer is allocated and you have to
  * update a partial display several times.
  * 1 byte = 8 pixels, therefore you have to set 8*N pixels at a time.
  */
Epd epd;

void setup()
{
    // put your setup code here, to run once:
    Serial.begin(9600);
    if (epd.Init() != 0) {
        Serial.print("e-Paper init failed\n");
        return;
    }
    //Serial.print("ClearFrameMemory\n");
   // epd.ClearFrameMemory();   // bit set = white, bit reset = black

    /**
     *  there are 2 memory areas embedded in the e-paper display
     *  and once the display is refreshed, the memory area will be auto-toggled,
     *  i.e. the next action of SetFrameMemory will set the other memory area
     *  therefore you have to set the frame memory and refresh the display twice.
     */
    Serial.print("SetFrameMemory\n");
    epd.SetFrameMemory(gImage_IMAGE);
    Serial.print("DisplayFrame\n");
    epd.DisplayFrame();
}

void loop()
{
}

Resources

• Product Page
• Product Wiki
• User Manual
• Schematic
• GitHub

Shipping List

• 1 x 2.9inch e-Paper
• 1 x e-Paper Driver HAT
• 2 x RPi screws pack
• 1 x PH2.0 20cm 8Pin