Running Demo Codes

To run the demo code, perform the following on VisionFive 2 Debian:

  1. Locate to the directory where the test code, edge_detection_with_LED_Matrix.py, exists:
    1. Source into the Python3 Virtual Environment:
      source ./myvenv/bin/activate
    2. Execute the following command to install dependency:
      python3 -m pip install pillow
    3. Execute the following command to get the directory where VisionFive.gpio exists:
      python3 -m pip show VisionFive.gpio
      Result:
      Location: /home/user/myvenv/lib/python3.11/site-packages
      Note:

      The actual output depends on how the application is installed.

    4. Execute the following to enter the directory, for example, /home/user/myvenv/lib/python3.11/site-packages as indicated in the previous step output:
      cd /home/user/myvenv/lib/python3.11/site-packages
    5. Execute the following command to enter the sample-code directory:
      cd ./VisionFive/sample-code/
  2. Under the sample-code directory, execute the following command to execute the demo code:
    ssudo python  edge_detection_with_LED_Matrix.py

    Alternatively, you can execute the following command:

    sudo python3  edge_detection_with_LED_Matrix.py
    Result:
    • The terminal displays as follows:
      # python3 edge_detection_with_LED_Matrix.py 
      *------------------------------------------------------*
      Please press the key on pin 37 to launch !!!
    • After pressing the button according to the prompt, the LED matrix module will countdown from 5 to 1, and finally display the StarFive logo, as shown in the following figure:
      Figure 1. Countdown and StarFive Logo
  3. (Optional) Exit the Python3 Virtual Environment.
    deactivate