Hardware Connection

When connecting to the Raspberry Pi, you can directly plug the board into the 40PIN pin header of the Raspberry Pi, and be careful to align the pins.
If you choose to use a 9PIN cable to connect, please refer to the pin corresponding table below:

Enable SPI Interface

• Open the Raspberry Pi terminal and enter the following command to enter the configuration interface:
  

sudo raspi-config
Select Interfacing Options -> SPI -> Yes to enable the SPI interface

• Restart Raspberry Pi:
  

sudo reboot

• Check /boot/config.txt and you can see that 'dtparam=spi=on' has been written to
  

• To ensure that SPI is not occupied, it is recommended that other driver overlays be temporarily turned off. You can use ls /dev/spi* to check the SPI occupancy. The terminal output /dev/spidev0.0 and /dev/spidev0.1 indicates that the SPI situation is normal

Run C Demo

• Install lg library

#Open the Raspberry Pi terminal and run the following commands:
wget https://github.com/joan2937/lg/archive/master.zip
unzip master.zip
cd lg-master
make
sudo make install
# For more information, please refer to the source code: https://github.com/gpiozero/lg

#Open the Raspberry Pi terminal and run the following commands:
sudo apt-get update
sudo apt install gpiod libgpiod-dev

#Open the Raspberry Pi terminal and run the following commands:
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
tar zxvf bcm2835-1.71.tar.gz 
cd bcm2835-1.71/
sudo ./configure && sudo make && sudo make check && sudo make install
# For more information, please refer to the official website: http://www.airspayce.com/mikem/bcm2835/

#Open the Raspberry Pi terminal and run the following commands:
sudo apt-get install wiringpi
#For Raspberry Pi systems after May 2019 (those earlier may not require execution), an upgrade may be necessary:
wget https://files.waveshare.com/wiki/common/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v
# Run gpio -v and version 2.52 will appear. If it does not appear, there is an installation error.

#Bullseye branch system uses the following command:
git clone https://github.com/WiringPi/WiringPi
cd WiringPi
./build
gpio -v
# Run gpio -v and version 2.60 will appear. If it does not appear, there is an installation error.

• Download the demo (you can skip it if you have already downloaded it)

wget https://files.waveshare.com/wiki/3.97inch_e-Paper_HAT%2B/3in97_e-Paper.zip
unzip 3in97_e-Paper.zip -d 3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

sudo apt-get install p7zip-full
7z x 3in97_e-Paper.zip -O./3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

git clone https://github.com/waveshare/e-Paper.git
cd e-Paper/E-paper_Separate_Program/3in97_e-Paper/RaspberryPi_JetsonNano/

• Compiler demo (Note: -j4 means using 4 threads for compilation, the number can be modified by yourself)

# It is now in 3in97_e-Paper/RaspberryPi_JetsonNano position
cd c
sudo make clean
sudo make -j4

• Run the demo

sudo ./epd

Run Python Demo

# Install the libraries required for the virtual environment
sudo apt-get update
sudo apt-get install git python3-pip -y
sudo apt install python3-venv

# Create a new virtual environment (myenv is the name of the virtual environment, which can be modified)
python3 -m venv myenv

# Activate the virtual environment
source myenv/bin/activate

# Install the libraries (see the corresponding location in the wiki)

# Download demo (see the corresponding location in the wiki)

# Run demo (see the corresponding location in the wiki)

# Exit the virtual environment
deactivate

• Install function library

sudo apt-get update
sudo apt-get install python3-pip
sudo apt-get install python3-pil
sudo apt-get install python3-numpy
sudo pip3 install spidev

sudo apt-get update
sudo apt-get install python-pip
sudo apt-get install python-pil
sudo apt-get install python-numpy
sudo pip install spidev

sudo apt-get update
# python3
sudo apt install python3-gpiozero
# python2
sudo apt install python-gpiozero

• Download the demo (you can skip it if you have already downloaded it)

wget https://files.waveshare.com/wiki/3.97inch_e-Paper_HAT%2B/3in97_e-Paper.zip
unzip 3in97_e-Paper.zip -d 3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

sudo apt-get install p7zip-full
7z x 3in97_e-Paper.zip -O./3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

git clone https://github.com/waveshare/e-Paper.git
cd e-Paper/E-paper_Separate_Program/3in97_e-Paper/RaspberryPi_JetsonNano/

• Run the demo

# Make sure it is in 3in97_e-Paper/RaspberryPi_JetsonNano/ position
cd python/examples/
python3 epd_3in97_test.py

Hardware Connection

Use a 9PIN cable to connect, please refer to the pin corresponding table below:

Install IDE

Arduino IDE Windows Installation Tutorial

Run Demo

• In the Resources section download the Demo, then unzip it and enter the 3in97_e-Paper directory to see the following content
  

• Open the demo: 3in97_e-Paper\Arduino_R4\Arduino_R4.ino
  

• In the Arduino IDE, select the corresponding development board (Board) and port (Port) in the Tools menu
  

• Finally, click Upload, and the upload is as follows (Arduino 1.8.13)

Hardware Connection

The 40PIN pin of Jetson Nano is compatible with the 40PIN pin of Raspberry Pi, and it provides a Jetson.GPIO library that is consistent with the API of RPI.GPIO library of Raspberry Pi, so the serial number connected here is the same as that of Raspberry Pi. When using the 40PIN interface, you can directly insert the module into the 40Pin header of the Jetson Nano.
If you choose to use a 9PIN cable to connect, please refer to the pin corresponding table below:

Run C Demo

• Download the demo (you can skip it if you have already downloaded it)

wget https://files.waveshare.com/wiki/3.97inch_e-Paper_HAT%2B/3in97_e-Paper.zip
unzip 3in97_e-Paper.zip -d 3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

sudo apt-get install p7zip-full
7z x 3in97_e-Paper.zip -O./3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

git clone https://github.com/waveshare/e-Paper.git
cd e-Paper/E-paper_Separate_Program/3in97_e-Paper/RaspberryPi_JetsonNano/

• Compiler demo (Note: JETSON specifies the device as jetson nano, if not specified, the default is Raspberry Pi; -j4 means using 4 threads for compilation, the number can be modified by yourself)

# It is now in 3in97_e-Paper/RaspberryPi_JetsonNano position
cd c
sudo make clean
sudo make JETSON -j4 

• Run the demo

sudo ./epd

Run Python Demo

• Install function library

sudo apt-get update
sudo apt-get install python3-numpy
sudo apt-get install python3-pip
sudo pip3 install Jetson.GPIO

• Download the demo (you can skip it if you have already downloaded it)

wget https://files.waveshare.com/wiki/3.97inch_e-Paper_HAT%2B/3in97_e-Paper.zip
unzip 3in97_e-Paper.zip -d 3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

sudo apt-get install p7zip-full
7z x 3in97_e-Paper.zip -O./3in97_e-Paper
cd 3in97_e-Paper/RaspberryPi_JetsonNano/

git clone https://github.com/waveshare/e-Paper.git
cd e-Paper/E-paper_Separate_Program/3in97_e-Paper/RaspberryPi_JetsonNano/

• Run the demo

# Make sure it is in 3in97_e-Paper/RaspberryPi_JetsonNano/ position
cd python/examples/
python3 epd_3in97_test.py

Hardware Connection

Use a 9PIN cable to connect, please refer to the pin corresponding table below:

Run Demo

• Click to download the Demo, then unzip it and enter the 3in97_e-Paper directory to see the following content

• Use Keil to open epd-demo.uvprojx in the 3in97_e-Paper\STM32-F103ZET6\MDK-ARM directory
  
• Open Keil's compilation toolbar (which is generally open) < br/>

• Click Compile

• Make sure the appropriate programmer is connected, then click LOAD to download the demo to the microcontroller

Hardware Connection

Environment Configuration

Online installation requires the use of VPN software, while offline installation does not require the use of VPN software

• Install Online

Run Demo

• In the Resources section download the Demo, then unzip it and enter the 3in97_e-Paper directory to see the following content
  

• Open the demo: 3in97_e-Paper\ESP32\ESP32.ino
  

• In the Arduino IDE, select the corresponding development board (Board) and port (Port) in the Tools menu
  

• Finally, click Upload, and the upload is as follows (Arduino 2.2.1)