ROS 2 Tutorial for Beginners: Learn ROS 2 Without a Robot
ROS 2 tutorial for beginners in India: install ROS 2 Lyrical on Ubuntu or Raspberry Pi and learn nodes, topics, services and actions with turtlesim.

ROS 2 tutorial for beginners in India: install ROS 2 Lyrical on Ubuntu or Raspberry Pi and learn nodes, topics, services and actions with turtlesim.
Run YOLOv8 object detection on a Raspberry Pi 4 with the V1 camera – no GPU needed. Real errors, real fixes, tested by Indian makers at RootSaid.
From setting up Ollama and downloading Gemma, to wiring up the microphone and speaker, to running the complete voice assistant live on a Raspberry Pi 4.
Complete guide to building a fully offline voice assistant on Raspberry Pi 4/5. Uses Ollama + Gemma for AI, Whisper for speech-to-text, Piper TTS for voice output. Full Python code included. No cloud, no API keys — 100% private.
Install OpenClaw on Raspberry Pi and use it as an AI agent to write, compile and upload Arduino sketches automatically. Step-by-step guide with security tips.
Learn how I controlled an LED using Raspberry Pi GPIO with Python. A beginner-friendly tutorial with real troubleshooting tips and automation ideas.
Learn how I connect Arduino and Raspberry Pi using USB and UART TX/RX pins with simple Python and Arduino code for beginners.
Step-by-step guide to building a Raspberry Pi Zero robot using L293D with PWM speed control and keyboard driving over SSH.
Set up Raspberry Pi Connect for browser-based remote access with no port forwarding and no static IP — plus how it compares with VNC, SSH and Tailscale.
Run AI locally on Raspberry Pi using Ollama and Open WebUI. Real setup, real issues, storage limits, memory crashes, overheating – and fixes that actually work.
Struggling with the 250MB AWS Lambda limit? See how I used AWS EFS to host massive Python libraries like OpenCV for Raspberry Pi robotics. No more Layers hell!
Learn how to access your Raspberry Pi or any internal network device remotely without port forwarding, static IPs, or router changes.