Using Rasperry PI as home assistant

Home Assistant with Raspberry Pi 4

🎯 Purpose

I had a Raspberry Pi 4 sitting idle at home. Previously, I used it to run Pi-hole for blocking ads across the network.

Instead of letting it collect dust, I decided to re-install it from scratch and explore how much of my smart home and wireless devices I could integrate with it.

Surprisingly, it was very straightforward --- I spent about 24 hours total to get the following things implemented:

🔩 Components

• Arduino Wifi R4 watering system (with a local webserver)\
• Roborock Qrevo MaxV Black\
• Bambu Labs 3D printer P1S with AMS\
• 5× TRETAKT smart plugs (via Zigbee adapter)\
• 1× LED light strip (generic Amazon brand)\
• 3× Tapo Cam C200

🧠 Architecture (high-level)

• Controller: Raspberry Pi 4 running Home Assistant OS\
• Multiplexers: None required (direct integrations)\
• Displays: Home Assistant dashboards on desktop + mobile\
• Sensors: Smart plugs (power consumption), Tapo cameras (motion), watering system (soil moisture)\
• Actuators: Smart plugs, watering pumps, LED lights, vacuum, 3D printer control\
• Backend/API: Home Assistant integrations (Zigbee2MQTT, vendor APIs)\
• Mobile/App: Home Assistant Companion app (iOS/Android)

🖼️ Gallery

I will use the 3d printed parts as chassi for the cooling system later.

Short video sorry for the noise of the 3d printer:

⏭️ Next steps

• Implement water cooling for the raspberry PI
• Complete the 3d printed chassi
• Add voice control (Google Assistant / Alexa bridge)\
• Expand automation routines (e.g., "away mode" for energy saving)\
• Set up local-only backup for Home Assistant config\
• Explore advanced 3D printer integration (e.g., OctoPrint API)