Pi 4 Node-RED Smart Home Kit with Raspberry Pi 4 + DHT22
Pi 4 Node-RED Smart Home Kit: Control Appliances & Monitor Climate from Your Phone
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn your living space into a smart home controlled right from your mobile browser. This kit walks you through installing Node-RED on a Raspberry Pi 4, wiring a DHT22 temperature-humidity sensor and a 4-channel relay module, and building a flow-based dashboard that toggles appliances and displays sensor readings over WiFi. No cloud subscription needed — everything runs on your local network.
What You'll Build
A fully functional Node-RED dashboard on Raspberry Pi 4 that lets you switch lights, fans, or other appliances on and off while viewing real-time temperature and humidity — all from your phone’s browser, without any coding required on the client side. The dashboard updates instantly and can be styled with buttons, gauges, and charts.
What You'll Learn
- Install and configure Node-RED on Raspberry Pi 4
- Read DHT22 sensor data via Python or Node-RED GPIO nodes
- Control a 4-channel relay module safely using flyback diodes
- Design a responsive web dashboard accessible over local WiFi
Kit Contents
| Component | Quantity |
|---|---|
| Raspberry Pi 4 Model B 2GB | 1 |
| DHT22 | 1 |
| 4-ch Relay Module | 1 |
| 1N4007 Diode | 5 |
| 4.7kΩ Resistors | 5 |
| 40-pin GPIO Header | 1 |
| M-F Wires | 20 |
| MicroSD Card 32GB | 1 |
| USB-C PSU | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Perfect for CBSE Class 11–12 students building a smart home automation project for practical exams, B.Tech ECE/EEE students prototyping an IoT-based home control system, ATL Tinkering Lab innovators, and Smart India Hackathon participants looking for a ready-to-go IoT kit that teaches Node-RED and dashboard design.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR
Pi 4 Node-RED dashboard controls GPIO relays and reads DHT22. Accessible from phone on local WiFi.
What's in this kit
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items