This Little-Known Trick Lets You Build an Arduino Home Automation System On the Cheap

I've always been fascinated by home automation systems and wanted to build my own. However, most commercial solutions are expensive and require professional installation. That's why I was thrilled when I discovered this little-known trick that lets you build an Arduino-based home automation system on a budget.

Why Use Arduino for Home Automation?

Arduino is an open-source electronics platform that's perfect for DIY home automation projects. Here's why:

So if you want scalable and customizable home automation without the hefty price tag, Arduino is the way to go.

Buying the Right Arduino Kit

While you can buy Arduino components separately, I highly recommend getting a starter kit that includes all the essentials in one package. Here's what to look for:

I purchased the Elegoo Super Starter Kit and was very satisfied with the variety and quality. You can find kits under $50 on Amazon or directly from manufacturers like Elegoo. This gives you everything you need to get started with DIY Arduino home automation in one convenient package.

Easy Home Automation Projects to Try

The best part about Arduino is that you can start small and work your way up to more advanced systems. Here are some beginner-friendly projects I would recommend trying:

Entryway Lighting

Use a motion sensor and relay to automatically turn lights on when you enter a room and off after a delay. This is a simple automation that requires minimal wiring.

Smart Light Switches

Replace regular light switches with web-connected switches that can be controlled remotely from your phone. This lets you turn lights on/off from anywhere.

Temperature Monitoring

Use DS18B20 temperature sensors and display readings on a mini LCD screen or send to your phone. Monitor freezer/fridge temps or room temperatures.

Home Security Alerts

Connect window/door sensors and use the Arduino to send you notifications if they are opened while you're away. You can even wire up cameras.

The key is starting with easy, low-cost projects and slowly working your way up to more complex systems. The Arduino community has detailed guides for just about any home automation application you can think of.

Essential Tips for Success

Based on my experience, here are some tips to ensure your Arduino home automation project goes smoothly:


With a basic Arduino starter kit, free software, and a little guidance, anyone can build their own smart home automation system on a budget. It just takes some planning, patience, and a willingness to learn. The end result is a fully-customizable system that can provide security, convenience, and peace of mind. So if you're curious about home automation, grab an Arduino and start tinkering!