e-Paper Driver HAT

Introduction

Universal e-Paper Driver HAT, supports various Waveshare SPI interface e-Paper raw panels

Interfaces

Switch settings

There are two switches on the front panel of Drive HAT: Display Config and Interface Config.

Display Config Switch

The Display Config switch on e-Paper Driver HAT is made for being compatible with various SPI interface e-Ink raw panels from Waveshare. This switch has A and B sides. For connecting to different e-Paper raw panels, you can set the Display Config switch refer to the table below:

Interface Config Switch

With Interface Config, you can change the SPI interface of e-Paper to 3-lin SPI or 4-line SPI

Note: Examples we provide use 4-line SPI by default

Example for 7.5inch e-Paper Switch Settings

Connecting the e-Paper Driver HAT to 7.5inch e-Paper, we must switch the Display Config to B according to the Display Config table above, and set the Interface Config to 0 to make the e-Paper work on 4-line SPI mode.

How to use

Working with Raspberry Pi

Installing libraries required

If you want to connect your E-paper screen to Raspberry Pi, you should install some necessary libraries, or else the Demo below may work improperly. For more information about how to install the Raspberry Pi libraries, please visit the website: Libraries Installation for RPi, where you can find the detailed presentation about the installations of libraries wiringPi, bcm2835 and python.

Hardware connection

Here is the connection between Raspberry Pi 3B and E-paper (BCM).

Expected result

1) After the corresponding libraries installed, you can copy the relative programs into your Raspberry Pi, and then enter the corresponding file.

• BCM2835: Execute the command: make, to compile the code and generate a file epd. Execute the command: sudo ./epd, the program will run.
• WringPi: Execute the command: make, to compile the code and generate a file epd. Execute the command: sudo ./epd, the program will run.
• Python: Execute the command: sudo python main.py

2) Image will be displayed on the screen.

• Note：The refresh rate of this module is slow, and it will flicker for several times during refreshing. Please be patient.

Working with Arduino

Hardware connection

Expected result

1. Copy the libraries file of Arduino demo code to the libraries folder which is under the installation directory of Arduino IDE, it usually is C:\users\username\documents\arduino\libraries. You can also designate the location on Arduino IDE--> File -->Preferences -->Sketchbook location
2. Upload the project.
3. E-paper will display the image.

Note:

• The refresh rate of this module is slow, and it will flicker for several times during refreshing. Please be patient.

Working with the STM32 development board

• Here we use STM32F103ZE development board or NUCLEO-F103RB. (The demo code of 1.54inch/2.13inch/2.9inch e-Paper are based on NUCLEO-F103RB,

Others are based on STM32F103ZE)

• The demo code is based on HAL, so you can port the demo code to other STM boards with STM32CubeMX.
• The demo code can be compiled successfully in Keil v5

Hardware connection

Connecting to the STM32F103ZE:

Connecting to the NUCLEO-F103RB:

Expected result

1. Open the project (epd-demo.uvprojx), which is under the MDK-ARM directory.
2. Click Build to compile the project.
3. Click Download to load the code to your board.

• Reset, the screen will display image.

  Note: The refresh rate of this module is slow, and it will flicker for several times during refreshing. Please be patient.

e-Paper HAT Codes description

e-Paper HAT Hardware/software setup

Documentation

• Schematic

Related Resources

• Waveshare e-Paper display with SPI
  
• Pisugar case
  

e-Paper

• 1.54inch e-Paper
• 1.54inch e-Paper (B)
• 2.13inch e-Paper
• 2.13inch e-Paper (B)
• 2.7inch e-Paper
• 2.7inch e-Paper (B)
• 2.9inch e-Paper
• 2.9inch e-Paper (B)
• 4.2inch e-Paper
• 4.2inch e-Paper (B)
• 7.5inch e-Paper

To：

Dear Customers, There may be a lag of several hours before we could process your order, depending on the time difference between your location and ours. Sincerely hoping your understanding!

Email(support)

services01@spotpear.com