Template:12.48e-Paper-connecting-settings

We provide demo codes for four popular hardware platforms, Raspberry Pi, Arduino UNO, STM32 and the ESP32. The product you receive may be pre-assembled, you need to remove the back panel and connect your device like Raspberry Pi.

Raspberry Pi

Hardware connection

The pins used can be found on schematic according to codes

Enable SPI interface

Open terminal and type command

sudo raspi-config

Choose Interfacing Options -> SPI -> Yes. Then reboot the Raspberry Pi

sudo reboot

Libraries installation

• Install BCM2835

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.60.tar.gz
tar zxvf bcm2835-1.60.tar.gz 
cd bcm2835-1.60/
sudo ./configure
sudo make
sudo make check
sudo make install

• Install wiringPi

sudo apt-get install wiringpi
cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v

• Install python2

sudo apt-get update
sudo apt-get install python-pip
sudo apt-get install python-pil
sudo pip install RPi.GPIO
sudo pip install spidev

• Install python3

sudo apt-get update
sudo apt-get install python3-pip
sudo apt-get install python3-pil
sudo pip3 install RPi.GPIO
sudo pip3 install spidev

Download

Open terminal and run commands to download codes

sudo apt-get install p7zip-full
wget http://www.waveshare.net/w/upload/9/9a/12.48inch_e-Paper_Module_Code_RPI.7z
7z x 12.48inch_e-Paper_Module_Code_RPI.7z  -r -o./12.48inch_e-Paper_Module_Code
sudo chmod 777 -R 12.48inch_e-Paper_Module_Code
cd 12.48inch_e-Paper_Module_Code

Run codes

• C codes

cd c
sudo nano examples/main.c

Confirm that which kind of 12.48inch e-Paper do you use. If you use the two-color display, modify the file as below

If you use the tree-color display, modify the file as below

Save then compile and run the code

sudo make clean
sudo make
sudo ./epd

• Python codes

Open terminal and run the demo codes by commands:

cd python/examples

For two-color version

sudo python epd_12in48_test.py

For three-color version

sudo python epd_12in48_test.py

• Python codes-Weather

cd python/examples

For two-color display

sudo python Show_EN_Weather.py

For three-color display

sudo python Show_EN_Weather.py B

For help information

sudo python Show_EN_Weather.py help

Arduino

Hardware connection

You can directly insert the Arduino UNO to PCB

About the pins used:

Run codes

Download demo codes from wiki and unzio it.

Copy the 12in48 folder to the libraries directory which is under the installation directory of Arduino IDE.(The installation directory generally is C:\Program Files (x86)\Arduino\libraries)

Open Ardunin IDE software, choose Tool->Board->Arduino UNO:

Click File -> Examples -> EPD12in48 to opem demo cods

If your e-Paper is two-color version, use the epd12in48-demo, otherwise, use the epd12in48b-demo

Compile and download the codes to board

STM32

The development board we use is Waveshare Open103Z. The project is developed based on STM32 HAL libraries.

Hardware connection

To assemble the Open32, you should connect it by wires provided.

About the pins used, you can refer to e-paper.ioc file.

Run codes

Open the project (~\STM32\NUCLEO-F103RB\MDK-ARM\e-paper.uvprojx), compile and download to developmen board. It requires about 10s for the two-color version and 20s for three-color display.

ESP32

The demo codes for ESP32 are developed with Arduino IDE as well.

Software setup

To develop ESP32, you should first set up the environment.

• Download the newest Arduino IDE from Arduino website: https://www.arduino.cc/en/Main/Software
• Download ESP32 pack from github: https://codeload.github.com/espressif/arduinoesp32/zip/master . Unzip the achieve to [Arduino IDE installation direcotry]/Hardare/espressif/esp32 directory. (If you didn't find the path under the installation directory, please create the folders manually)

• Enter the tools folder, and run the get.exe file as administrator. After installing, Copy the esp32-epd-12in48 folder of ESP32 demo codes to [Arduino IDE installation directory]/Hardware/espressif/esp32/libraries

Hardware connection

Here we use Waveshare e-Paper ESP32 Driver Board as an example. Attach it on PCB.

About the pins used, you can refer to schematic and codes

Examples 1

Open Arduino IDE software, and find the examples on File->Examples

If you use two-color e-Paper, choose the epd12in48-demo, otherwise, use the epd12in48B-demo