Turning a Raspberry Pi into a home automation powerhouse wasn’t something I expected to enjoy as much as I do. But once I got started, I couldn’t stop adding new ways to control and customize the surrounding environment. These five projects have become daily tools I rely on, not just cool tech experiments. They save time, add convenience, and give me total control over my space, all without tying me to any cloud services or monthly fees.

5 Home Assistant is my automation hub

A Raspberry Pi 5 runs everything behind the scenes

Home Assistant is the beating heart of my smart home setup. I run it on a Raspberry Pi 5 with a fast M.2 NVMe SSD, and it handles everything from basic light controls to more complex motion-based routines. It’s connected to a mix of Zigbee, Wi-Fi, and infrared devices, letting me automate lights, smart plugs, thermostats, and even my old TV. The number of integrations available is wild — TP-Link, Hue, Sonos, and a handful of DIY sensors running smoothly under one dashboard.

One of my favorite things about it is how customizable the automations are. For example, when the dog goes out after dark, a motion sensor by the back door turns on the porch light automatically. If no movement is detected for ten minutes, it shuts off, saving power and hassle. I’ve also built touch-friendly dashboards to control everything from a tablet mounted in the kitchen, which is way faster than fumbling for a phone.

Setting everything up took some effort, especially the first few integrations, but it was worth it. Updates are simple to manage through the Supervisor interface, and everything has been stable thanks to the Pi 5’s speed and memory. I use WireGuard to access my dashboard remotely and securely, which makes it easy to check in or make changes when I’m away from home. For something running on a board that costs under $100, it’s incredibly powerful.

4 Pi-hole keeps my network clean

Blocks ads and trackers across every device

I installed Pi-hole early on and have continued using it ever since. It’s installed on a Raspberry Pi Zero 2 W and silently blocks ads and trackers across my entire network. Every device in the house—phones, laptops, smart TVs, even game consoles—benefits from cleaner, faster browsing without needing individual browser extensions. Pages load faster, there’s less junk cluttering the screen, and mobile games don’t bombard you with constant ad interruptions.

The admin dashboard provides me with complete visibility into what’s being blocked and allows for quick whitelisting if something breaks. I paired it with DNS-over-HTTPS for added privacy and encryption. When visitors are over, their devices benefit instantly without changing anything. Most of them never even notice, except for how snappy everything feels.

This tiny Pi has become a cornerstone of my network security and performance. It’s lightweight, easy to update, and just works. Aside from the occasional need to update blocklists or tweak a setting, I hardly ever need to touch it. That kind of quiet reliability is precisely what I want in something that sits between every device and the internet.

3 Smart thermostat control with MQTT

Custom temperature sensors and control with no cloud needed

I wanted a more private and flexible thermostat control system than the app for my smart thermostat. I built a system using Raspberry Pi Pico W boards with DHT22 sensors in multiple rooms, each sending temperature and humidity data over MQTT. My Home Assistant Raspberry Pi listens for this data and adjusts the thermostat using automations. This gives me complete control over heating and cooling the house without relying on an external cloud service.

I can create intelligent rules, such as heating the bedroom to 68°F only when someone is home after 10 p.m. or keeping the living room cool if the sun has been blasting it all afternoon. I can also create zone-based routines based on motion, presence detection, and real-time temperature. Everything runs locally, so it’s fast and works even if the internet goes down.

Tuning the MQTT setup and fine-tuning sensor data reporting took some trial and error, but it’s been remarkably stable once everything was dialed in. Expanding to additional rooms only requires adding another cheap sensor and updating a config file, which takes less than ten minutes.

2 Custom voice commands with Home Assistant local Assist

Local voice control, no Amazon or Google needed

I wanted voice control in my home without giving access to Amazon or Google. Assist, a local voice assistant, runs entirely offline on my Home Assistant Raspberry Pi 5. I configured a Raspberry Pi Zero with a ReSpeaker 2-mic HAT to send commands to Home Assistant via MQTT. Although not as polished as Alexa or Google Assistant, it offers complete control over what it listens to and how it behaves.

I can say “Turn off the bedroom lights” or “Start the fan,” and it responds instantly. Its ability to define custom commands and sentence structures makes it powerful. Adding new phrases or tweaking triggers is easy, so it grows with my setup. Since it works offline, it functions during outages, unlike cloud-based assistants.

Setting up training data and getting decent speech recognition took time. Assist offers multiple backends, so I tested them before settling on the best for my voice and environment. Now, it’s fast, responsive, and surprisingly accurate. It’s great to have a voice assistant that works exactly how I want it to—and doesn’t send my voice to a server I don’t control.

1 Camera system with motion notifications

A Pi-powered security system with zero subscription fees

I built a home security camera system for a friend using a Raspberry Pi 4, two USB webcams, and a 1TB SSD. MotionEyeOS handles video streaming and recording, while Home Assistant monitors motion events and sends notifications. He gets snapshots of motion events on his phone and can stream the live feeds from any browser or tablet in the house. It gives him solid security without paying monthly fees for cloud recording or dealing with third-party storage.

The system records the house’s front and back views, with motion-triggered clips saved to the SSD. I set it up so that alerts are silenced when someone is home, but automatically resume when everyone’s away. At sunset, it switches the cameras to night vision mode automatically. This means he always gets the footage needed without micromanaging it.

Managing storage is easy with scheduled pruning of old clips, and the interface lets him browse recordings by time and date. The setup also includes tamper detection and notification redundancy through both email and push alerts. I’ve even added automations to flash smart lights when motion is detected late at night. It may have started as a simple DIY experiment, but it’s now a fully integrated part of my buddy’s smart home.

These Pi projects give me total control at home

These Raspberry Pi setups started as side projects, but they’ve become essential for managing my home. They’ve made my network faster, my devices more responsive, and my automations more powerful without tying me to cloud services or expensive platforms. What I love most is how these projects gave me complete control over how things work, when they work, and who has access to them. If you want to do more with your smart home, a handful of Pi boards might be all you need.

• Raspberry Pi 5

  CPU

  Arm Cortex-A76 (quad-core, 2.4GHz)

  Memory

  Up to 8GB LPDDR4X SDRAM

  Operating System

  Raspberry Pi OS (official)

  Ports

  2× USB 3.0, 2× USB 2.0, Ethernet, 2x micro HDMI, 2× 4-lane MIPI transceivers, PCIe Gen 2.0 interface, USB-C, 40-pin GPIO header

  GPU

  VideoCore VII

  Starting Price

  $60

  $80 at Micro Center $95 at Amazon (8GB)

• Raspberry Pi Zero 2 W

  $23 at Amazon

• Raspberry Pi Pico 2 W

  $15 at Amazon