Biometric Response Heatmap Kit with Arduino Mega
Biometric Response Heatmap Kit: Real-Time Stimulus Visualization with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform raw physiological data into a stunning visual readout. This kit lets you build a device that captures heart rate with the MAX30102 and galvanic skin response via GSR electrodes, then maps them onto a colour heatmap that shifts intensity with every stimulus event. Whether you are validating emotion theories or prototyping a lie-detection interface, the Biometric Response Heatmap Kit puts your skin’s secrets on screen.
What You'll Build
You’ll assemble a self-contained biometric logging station that reads pulse and skin conductance, timestamps each reading with a real-time clock, and renders a live heatmap on a 2.4-inch TFT. Electrode pads pick up micro-changes in sweat gland activity; the onboard ADC and op-amp amplify and digitize the signals. A microSD card stores session logs for later analysis in Python or MATLAB.
What You'll Learn
- Calibrating the MAX30102 optical sensor for stable heart rate readings
- Building a GSR front-end with LM358 and ADS1115 for microsiemens-level resolution
- Programming SPI and I2C buses concurrently on Arduino Mega to drive the TFT and data loggers
- Designing a heatmap palette algorithm that maps biosignal thresholds to colour intensities
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | x1 |
| MAX30102 | x1 |
| ADS1115 ADC | x1 |
| LM358 Op-Amp | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 2.4in TFT ILI9341 | x1 |
| Electrode | x2 |
| 100kΩ Resistors | x5 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| 9V Battery Snap | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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
This kit is designed for advanced engineering students and researchers who already have soldering and Arduino experience. It suits final-year B.Tech projects in biomedical engineering (ECE/EEE), Smart India Hackathon teams working on affective computing, and hobbyists exploring psychophysiology. The soldering iron and PCB prototyping boards make it a complete bench setup for serious projects.
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 stimuli can I use to trigger a visible response?
Start with emotionally charged images, unexpected sounds, or mild temperature changes; the GSR will spike within 1-3 seconds. The AI companion suggests several validated stimulus sets you can use right away.
How do I interpret the heatmap colours?
Red typically indicates high arousal, blue low, but the threshold mapping is fully configurable in the code. The project documentation includes a colour scale explanation and sample datasets for calibration.
Can I export session data for analysis?
Yes, the microSD stores timestamped CSV files that you can import directly into Excel, Python, or MATLAB for trend analysis, statistical comparison, or plotting.
Is this kit suitable for a lie-detection experiment?
While not a certified polygraph, the combined heart rate and GSR data can reveal arousal patterns often used in deception research, making it a valuable academic prototyping tool for psychophysiology studies.
MAX30102 and skin GSR log response to stimuli. Heatmap colours change intensity on stimulus events.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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