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Preface
About this guide and technical support information.
Introduction
Preparation
Running Demo Codes
Demo Source Code
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Running Demo Codes

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

Locate to the directory where the test code, basic_edge_detection.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/
```

Under the sample-code directory, execute the following command to execute the demo code:

sudo python basic_edge_detection.py

Alternatively, you can execute the following command:

sudo python3 basic_edge_detection.py

Result:

The terminal displays as follows:

# python3 basic_edge_detection.py 
*-----------------------Case 1-------------------------*
Please press the key on pin 37 once at any time !!!

Press the button, and the terminal displays as follows:

*-----------------------------------*
Falling edge is detected on pin 37 !

*-----------------------------------*
Rising edge is detected on pin 37 !

(Optional) Exit the Python3 Virtual Environment.
```
deactivate
```