IoT Practical Kit

A small Python package that prints the source code for common Raspberry Pi IoT practicals. It does not execute the displayed programs.

Install for local development

python -m pip install -e .

After publication on PyPI, install with:

python -m pip install iot-practical-kit

Quick start

from iot_practical_kit import p1

p1()  # Prints the complete P1 LED blinking source code only

Available functions

All code comes from the IoT Practical Exam Cheat Sheet.

Run list_practicals() to see every program with a one-line description.

Every practical function (and get_code) takes two optional arguments:

p1()                 # all 5 programs of P1 (BCM numbering)
p1(3)                # only program 3 (running LED)
p10(2)               # only Part C (ultrasonic)
p10(board=True)      # GPIO.BOARD version (physical pin numbers)
get_code("p6", 3)    # scrolling-text program, returned as a string

Output format

Printed code contains no comments at all. When a practical prints several programs together, they are separated by blank lines; use p1(3) to print just one program.

Important notes

• Calling p1() prints source code; it does not execute the GPIO program.
• Raspberry Pi-specific code requires compatible Raspberry Pi hardware, libraries, and OS to run.
• Pin assignments follow BCM numbering by default. Pass board=True for the physical-pin (GPIO.BOARD) version. P7, P8 and P9 are identical in both modes.
• Check your class handout and wiring before using any snippet. These examples are study templates and may need adjustment for your sensor model, library version, and OS.
• For HC-SR04 ultrasonic sensors, the ECHO signal is commonly 5V. Raspberry Pi GPIO is 3.3V tolerant: use a suitable voltage divider or level shifter.
• For fingerprint examples, update the serial port and ensure the sensor is enrolled and connected correctly.
• The P14 web monitor has two source files: call p14() for app.py and p14_html() for templates/index.html.

Repository structure

iot-practical-kit/
├── pyproject.toml
├── README.md
└── src/
    └── iot_practical_kit/
        ├── __init__.py
        └── practicals.py

License

MIT