Getting started with Node.js on Raspberry Pi is an awesome way to build real-world projects using JavaScript — whether it’s blinking LEDs, reading sensors, or building IoT dashboards 🚀

Here’s a simple step-by-step guide to get up and running:

✅ 1. 📦 Install Node.js on Raspberry Pi

Option 1: Use APT (Recommended for most users)

bash
sudo apt updatesudo apt install nodejs npm -y

Check installation:

bash
node -vnpm -v

✅ 2. 🧪 Test Node.js is Working

Create a test file:

bash
nano test.js

Add this:

js
console.log("Hello from Raspberry Pi and Node.js!");

Run it:

bash
node test.js

✔️ You should see the message in your terminal.

✅ 3. 📁 Create a Node.js Project

bash
mkdir pi-projectcd pi-projectnpm init -y

This creates a package.json file.

✅ 4. ⚡ Control GPIO (e.g. LED Blinking)

Install the onoff package:

bash
npm install onoff

Example to blink an LED on GPIO17:

js
// blink.jsconst Gpio = require('onoff').Gpio;const led = new Gpio(17, 'out');setInterval(() => {  led.writeSync(led.readSync() ^ 1); // Toggle LED}, 500);// Cleanupprocess.on('SIGINT', () => {  led.writeSync(0);  led.unexport();  console.log("Stopped.");  process.exit();});

Run with:

bash
sudo node blink.js

✅ 5. 🛠 Other Cool Things You Can Do

✅ 6. 🤖 Example: Web Controlled LED

Want to control an LED using a browser button?
I can help you build that next — just ask!