Working with Jetson Nano

Hardware Connection

• The 40PIN header on the Jetson Nano is compatible with the Raspberry Pi's 40PIN header, and it provides a Jetson.GPIO library whose API is consistent with the Raspberry Pi's RPI.GPIO library. Therefore, the pin numbers used here are the same as those for the Raspberry Pi. When using the 40PIN interface, you can directly plug the module into the 40PIN header of the Jetson Nano.

• If using a 9PIN cable, please refer to the pin mapping table below:

  Jetson Nano pin mapping

  e-Paper	Jetson Nano Developer Kit
  	BCM2835 Pin	Board Physical Pin Number
  VCC	3.3V	3.3V
  GND	GND	GND
  DIN	10(SPI0_MOSI)	19
  CLK	11(SPI0_SCK)	23
  CS	8(SPI0_CS0)	24
  DC	25	22
  RST	17	11
  BUSY	24	18
  PWR	18	12

Running the C Example

• Download the demo (skip if already downloaded)

  wget https://files.waveshare.com/wiki/4.26inch_e-Paper_G/4.26inch_e-Paper_G.zip
  unzip 4.26inch_e-Paper_G.zip -d 4.26inch_e-Paper_G
  cd 4.26inch_e-Paper_G/RaspberryPi_JetsonNano/

  Alternative extraction method

  sudo apt-get install p7zip-full
  7z x 4.26inch_e-Paper_G.zip -O./4.26inch_e-Paper_G
  cd 4.26inch_e-Paper_G/RaspberryPi_JetsonNano/

  Download the program via GitHub (alternative method, skip if already downloaded)

  • Accessing GitHub may not be very smooth at present. It is recommended to use the above method to download from our official website.

    git clone https://github.com/waveshare/e-Paper.git
    cd e-Paper/E-paper_Separate_Program/4.26inch_e-Paper_G/E-RaspberryPi_JetsonNano

• Compile the program (Note: -j4 uses 4 threads for compilation; you can modify the number)

  # It is now in 4.26inch_e-Paper_G/RaspberryPi_JetsonNano
  cd c
  sudo make clean
  sudo make JETSON -j4

• Run the program

  sudo ./epd

Running the Python Example

• Install libraries

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

• Download the demo (skip if already downloaded)

  wget https://files.waveshare.com/wiki/4.26inch_e-Paper_G/4.26inch_e-Paper_G.zip
  unzip 4.26inch_e-Paper_G.zip -d 4.26inch_e-Paper_G
  cd 4.26inch_e-Paper_G/RaspberryPi_JetsonNano/

  Alternative extraction method

  sudo apt-get install p7zip-full
  7z x 4.26inch_e-Paper_G.zip -O./4.26inch_e-Paper_G
  cd 4.26inch_e-Paper_G/RaspberryPi_JetsonNano/

  Download the program via GitHub (alternative method, skip if already downloaded)

  • Accessing GitHub may not be very smooth at present. It is recommended to use the above method to download from our official website.

    git clone https://github.com/waveshare/e-Paper.git
    cd e-Paper/E-paper_Separate_Program/4.26inch_e-Paper_G/E-RaspberryPi_JetsonNano

• Run the program

  # Make sure it is in 4.26inch_e-Paper_G/RaspberryPi_JetsonNano/
  cd python/examples/
  python3 epd_5in0_test.py