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Raspi Get Started in NodeJs

Raspi Get Started in NodeJs

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

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


βœ… 1. πŸ“¦ 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


βœ… 2. πŸ§ͺ 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

βœ”οΈ You should see the message in your terminal.


βœ… 3. πŸ“ Create a Node.js Project

bash

mkdir pi-projectcd pi-projectnpm init -y

This creates a package.json file.


βœ… 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


βœ… 5. πŸ›  Other Cool Things You Can Do

FeatureLibrary
Control LEDs/Buttonsonoff, rpi-gpio
Use sensors (DHT11)node-dht-sensor
Create web serversexpress
Control from phonesocket.io, REST APIs
Send data to cloudaxios, mqtt
Use Pi Cameraraspistill, node-webcam


βœ… 6. πŸ€– Example: Web Controlled LED

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

Disclaimer for AI-Generated Content:
The content provided in these tutorials is generated using artificial intelligence and is intended for educational purposes only.
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