Pi 4 Node-RED Dashboard Sensor Hub Kit with Raspberry Pi 4 + DHT22
Build a Live Sensor Monitoring Dashboard with Raspberry Pi 4 & Node-RED
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 Raspberry Pi 4 into a live environmental monitoring station with drag‑and‑drop Node-RED flows. This kit lets you wire two DHT22 temperature‑humidity sensors, a BMP280 pressure sensor, and light‑dependent resistors, then display real‑time charts, gauges, and text widgets on any browser. No coding is required – you’ll build a complete web dashboard while learning the fundamentals of IoT and sensor integration.
What You'll Build
A fully functional sensor hub that reads temperature, humidity, barometric pressure, and ambient light. Your Raspberry Pi 4 streams data to a Node-RED dashboard with live line charts, gauge dials, and history tables. By the end, you’ll have a responsive monitor you can check from a phone or laptop on the same network – ideal for smart agriculture prototypes, weather stations, or school science fairs.
What You'll Learn
- Wiring I²C and digital sensors (DHT22, BMP280) to the Raspberry Pi GPIO
- Installing Node-RED on Raspberry Pi OS and importing sensor node palettes
- Creating interactive dashboard widgets – gauges, charts, and text displays – without JavaScript
- Reading sensor data streams, applying real‑time calibration, and logging measurements for analysis
Kit Contents
| Component | Quantity |
|---|---|
| Raspberry Pi 4 Model B 2GB | 1 |
| DHT22 | 2 |
| BMP280 | 1 |
| LDR | 2 |
| 4.7kΩ Resistors | 10 |
| 10kΩ Resistors | 5 |
| 40-pin GPIO Header | 1 |
| M-F Wires | 25 |
| MicroSD Card 32GB | 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 exploring IoT in computer science or physics labs, B.Tech ECE/EEE first‑years building sensor‑based mini‑projects, and Smart India Hackathon or ATL Tinkering Lab participants. Engineering aspirants at IIT, NIT, VIT, BITS will find it a practical launchpad for university-level embedded systems and home automation prototypes.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code on the kit box to launch the Compoden AI companion, pre‑trained on every wiring step and Node-RED node for this exact dashboard. You can also reach us on WhatsApp or email for direct human support.
Can I view the sensor dashboard on my mobile phone?
Yes. The Node-RED dashboard is browser‑based, so any device connected to the same Wi‑Fi network – phone, tablet, or laptop – can open the live charts and gauges. The kit focuses on local network monitoring, but you can later configure remote access through your router if needed.
Do I need prior Node-RED experience?
None. Our AI companion and printed guide take you from first‑boot of Raspberry Pi OS to installing Node-RED and importing pre‑built flows. Every node is explained, so you learn flow‑based programming by wiring real sensors.
Can I expand the dashboard with more sensors later?
Absolutely. The Raspberry Pi 4’s 40‑pin GPIO header leaves plenty of I²C, SPI, and GPIO pins free. Node-RED’s palette supports thousands of community nodes – MQTT for IoT, databases for logging, or additional I²C breakout boards – letting you grow this into a full‑fledged environmental monitor or smart home hub.
Node-RED on Pi 4 reads GPIO sensors and builds a live web dashboard with charts and gauges.
What's in this kit
- Raspberry Pi 4 Model B 2GB
- DHT22 x2
- BMP280
- LDR x2
- 4.7kΩ Resistors x10
- 10kΩ Resistors x5
- 40-pin GPIO Header
- M-F Wires x25
- MicroSD Card 32GB
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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