Raspberry Pi Projects Collection

A comprehensive collection of Raspberry Pi projects ranging from beginner-friendly tutorials to advanced IoT implementations. Each project includes detailed documentation, circuit diagrams, and complete source code.

🎯 About This Repository

This repository serves as a centralized hub for various Raspberry Pi projects that demonstrate different aspects of hardware interfacing, sensor integration, automation, and IoT development. Whether you're a beginner looking to learn the basics or an experienced developer seeking inspiration, you'll find projects suited to your skill level.

Projects are categorized by difficulty:

• 🟢 Beginner - Basic GPIO control, simple sensors
• 🟡 Intermediate - Multiple components, basic networking
• 🔴 Advanced - Complex systems, IoT integration, machine learning
• - Done
• - Yet to be done

🚀 Featured Projects

🌡️ Sensor Projects

• Temperature Monitor 🟢 - Use a DHT11 sensor to read and display temperature & humidity on the terminal
• Motion Detector Alarm 🟢 - Use a PIR sensor to trigger a buzzer or LED when motion is detected
• Air Quality Monitoring Device 🟡 - Use sensors (MQ135, SDS011) to measure PM2.5 and CO2
• Energy Monitoring Smart Meter 🔴 - Read current/voltage from CT sensors and visualize data

📊 Display & Interface

• Digital Clock with Python & Tkinter 🟢 - GUI-based clock application for local and UTC time
• GPIO Button Counter 🟢 - Count button presses and show count on an LCD
• CPU Temp and Usage Dashboard 🟢 - Create a local dashboard showing system stats using Bash/Python
• Touchscreen Smart Mirror 🟡 - Display weather, news, time on a reflective surface

🌐 IoT & Connectivity

• Raspberry Pi Weather Station (API version) 🟢 - Fetch and display real-time weather using an online API
• Network Speed Logger 🟢 - Record internet speed hourly using Python and log to CSV
• IoT Weather Station 🟡 - Push sensor data to the cloud (ThingSpeak / InfluxDB / MQTT)
• Industrial IoT Gateway 🔴 - Bridge Modbus (RS485) to MQTT for remote PLC monitoring
• Mesh Network Communication System 🔴 - Use LoRa or ESP-NOW to connect multiple Pi units across distances

🏠 Home Automation

• LED Blinker 🟢 - Learn GPIO basics by toggling an LED using Python
• IR Remote Controlled Devices 🟡 - Control appliances via infrared (send/receive signals)
• Home Automation System (Basic) 🟡 - Control lights and fans via a web dashboard using relays
• RFID Access System 🟡 - Use MFRC522 to create a basic access control system

🔐 Security & Surveillance

• Raspberry Pi Surveillance System 🟡 - Stream real-time video with motion detection using OpenCV
• USB Security Key 🟢 - Use a Pi Pico or Zero as a 2FA USB device
• Pi-hole Setup 🟢 - Block ads and trackers on your network
• Edge-based Face Recognition Attendance System 🔴 - Recognize and log faces locally without cloud dependency
• Security Camera with ML Intruder Detection 🔴 - Notify only when unusual activity is detected, reduce false positives

🎮 Entertainment & Media

• Photo Booth 🟢 - Use the Pi camera to take pictures with a button press and save them
• Bluetooth Speaker 🟢 - Configure your Pi to stream music over Bluetooth
• Mini Retro Gaming Console 🟡 - Use RetroPie to emulate NES/SNES/GBA with USB controller
• Voice Assistant (Offline) 🟡 - Use Vosk or Picovoice to create a basic voice command system
• Realtime Audio DSP 🔴 - Process mic input and add effects in real-time (echo, filter, etc.)

🔧 System Administration & Networking

• Remote SSH Setup 🟢 - Configure headless setup and learn the power of remote access
• Wireless Print Server 🟢 - Turn your Pi into a print server for non-Wi-Fi printers
• Pi NAS (Network Attached Storage) 🟡 - Configure Samba/FTP with attached HDDs for home file sharing
• Raspberry Pi Cluster (Docker or Kubernetes) 🟡 - Run a 2–3 node cluster and distribute lightweight jobs
• Hypervisor and VM on Pi 5 🔴 - Run multiple OS instances using KVM

🔬 Advanced & Experimental

• Bare-metal OS on Raspberry Pi 🔴 - Write a simple operating system (e.g., display Hello World on UART)
• Custom Linux Kernel Compilation 🔴 - Build and boot your own kernel with custom modules
• FPGA over Pi (with iCE40 or Lattice) 🔴 - Use SPI/UART to interface and control a soft-core CPU
• CAN Bus Sniffer for Automotive 🔴 - Interface with vehicles to log CAN messages using MCP2515

📋 Requirements

Hardware

• Raspberry Pi (Any model with GPIO pins - Pi 3B+, Pi 4, Pi Zero recommended)
• MicroSD Card (16GB or larger, Class 10)
• Power Supply (Official Pi adapter recommended)
• Breadboard and Jumper Wires
• Various Sensors and Components (specific to each project)

Software

• Raspberry Pi OS (Latest version recommended)
• Python 3.7+
• Git for cloning repositories
• Various Python libraries (specified in each project)

🛠️ Getting Started

1. Set Up Your Raspberry Pi

# Update your system
sudo apt update && sudo apt upgrade -y

# Install essential packages
sudo apt install python3-pip git vim -y

# Enable GPIO and other interfaces
sudo raspi-config

2. Clone This Repository

git clone https://github.com/yourusername/raspberry-pi-projects.git
cd raspberry-pi-projects

3. Choose a Project

Each project has its own directory with:

• README.md - Project-specific documentation
• requirements.txt - Python dependencies
• circuit_diagram.png - Wiring schematic
• Source code files
• Example configuration files

4. Install Dependencies

cd project-name
pip3 install -r requirements.txt

🔧 Common Tools & Libraries

Essential Python Libraries

# GPIO Control
pip3 install RPi.GPIO gpiozero

# Sensor Libraries
pip3 install adafruit-circuitpython-dht w1thermsensor

# Display Libraries
pip3 install luma.oled luma.lcd

# Web Framework
pip3 install flask

# IoT & Communication
pip3 install paho-mqtt requests

# Computer Vision
pip3 install opencv-python picamera

Useful Hardware Components

• Sensors: DHT11/22, HC-SR04, PIR, LDR, DS18B20
• Displays: 16x2 LCD, OLED (SSD1306), 7-segment
• Actuators: Servo motors, stepper motors, relays
• Communication: ESP8266, nRF24L01, Bluetooth modules
• Power: Buck converters, battery packs, solar panels

🐛 Troubleshooting

Common Issues

GPIO Permission Errors

sudo usermod -a -G gpio $USER
# Log out and back in

I2C Not Working

sudo raspi-config
# Enable I2C in Interfacing Options
sudo reboot

Python Module Not Found

# Use Python 3 explicitly
python3 -m pip install module-name

GPIO Already in Use

# Reset GPIO state
sudo systemctl restart gpio-shutdown

**🍓 Happy Making with Raspberry Pi!**