Heatmap Room Temperature Map Kit with Arduino Uno
Visualize Room Hotspots with the Arduino Uno Heatmap Room Temperature Map Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Ever noticed one corner of your room feeling warmer than the rest? This kit transforms four DS18B20 probes into a live temperature heatmap, painting hot and cold zones on a full-colour TFT display. Ideal for energy audits, physics investigatory projects, or simply understanding how heat moves through a room — and you’ll write the Arduino code that makes it all work.
What You'll Build
A portable, real‑time room temperature monitor. You’ll place one sensor in each corner, read them over a single 1‑Wire bus, and run an interpolation algorithm on the Arduino Uno. The 1.8‑inch ST7735 TFT then renders a smooth heatmap where blue fades to green, yellow, and red as temperatures rise. Spot hotspots instantly, log readings, or tweak the grid resolution for finer detail.
What You'll Learn
- Connecting multiple DS18B20 digital temperature sensors on a single 1‑Wire bus
- Programming an interpolated heatmap visualization on a TFT display using Arduino
- Implementing bilinear interpolation to estimate temperatures between sensor points
- Handling noise reduction with capacitors and pull‑up resistors for stable sensor data
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DS18B20 Temperature Probe | 4 |
| 1.8in TFT Display (ST7735) | 1 |
| 4.7kΩ Resistor (1/4W) | 5 |
| 100nF Ceramic Capacitor | 5 |
| 400-point Breadboard | 1 |
| Male-to-Male Jumper Wires | 25 |
| 9V Battery Snap Connector | 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
CBSE Class 11–12 students designing a physics investigatory project on thermodynamics, B.Tech ECE/EEE undergraduates prototyping a sensor network for Smart India Hackathon, and ATL Tinkering Lab mentors running a data visualization module. Anyone who wants to see heat, not just measure it, will find the project deeply engaging.
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 box to open the AI companion; it knows every connection and line of code for this kit. For extra help, message us on WhatsApp — we’ll respond with human troubleshooting.
Do I need to solder anything?
No soldering required. All connections use the breadboard and jumper wires. The 9V battery snap plugs directly into the Arduino’s DC jack.
Can this map temperatures in a large room?
The four probes are ideal for rooms up to about 200 sq ft. You can add extra DS18B20 sensors (purchased separately) on the same 1‑Wire bus and adjust the code to handle more points.
What other projects can I turn this into?
The same setup works as a greenhouse temperature logger, a server room hotspot alarm, or a science fair exhibit on thermal conductivity. The TFT heatmap code is easy to adapt — we include commented Arduino sketches.
Four DS18B20 at room corners build interpolated temperature heatmap on TFT showing hotspots.
What's in this kit
- Arduino Uno R3
- DS18B20 Probe x4
- 1.8in TFT ST7735
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x25
- 9V Battery Snap
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