Test Folder Layout

This folder contains quick hardware/IO test scripts and sample assets.

Layout

• test/python/gpio/ - Raspberry Pi GPIO tests (ultrasonic / servo / relay / camera)
• test/python/serial/ - Serial tests (Raspberry Pi <-> Arduino)
• test/python/integration/ - Integration tests (serial + camera)
• test/cpp/ - C++ experiments/tests
• test/assets/images/samples/ - Sample images committed to the repo
• test/assets/images/captures/ - Runtime captures (gitignored)

Python Scripts

GPIO (test/python/gpio/)

• test_all.py - Combined GPIO flow (ultrasonic + relay + servo + camera capture)
• test_cam.py - Ultrasonic + camera capture script
• test_relay.py - Relay on/off loop test
• test_servo.py - Ultrasonic-triggered servo movement test
• test_u.py - Ultrasonic distance print test
• test_ultrasonic_and_servo.py - Ultrasonic + servo combined test

Serial (test/python/serial/)

• read_distance.py - Read distance lines from serial and print Distance: <value> cm
• send_hello.py - Send one Hello from RPi message over serial
• read_0_1.py - Read and print 0/1 values from serial

Integration (test/python/integration/)

• test_rpi_and_r3.py - Serial + camera integration with relay/servo commands

Run Examples

Run from repository root:

python test/python/serial/read_distance.py
python test/python/serial/send_hello.py
python test/python/serial/read_0_1.py
python test/python/gpio/test_u.py
python test/python/integration/test_rpi_and_r3.py

Notes

• Scripts that use RPi.GPIO and/or cv2 may print a message and exit if those modules are not installed.
• Serial scripts may print a message and exit if pyserial is not installed.
• test_all.py writes captures to test/assets/images/captures/ by default.
• test_cam.py and test_rpi_and_r3.py save img_*.jpg to the current working directory.