Human Skin Resistance Study Kit with Arduino Uno
Human Skin Resistance Study Kit — Explore How Your Body Reacts to Wet, Dry, and Stress with Arduino Uno
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
From the dry palms before a viva to the clammy hands after a sprint, your skin’s electrical resistance is a dynamic signal of your physiological state. This kit turns that concept into a working instrument, letting you sample, amplify, and digitize skin resistance with 16-bit precision, then display live values on an LCD for immediate comparison across conditions.
What You'll Build
You’ll assemble a portable bio-monitor that reads microvolt-level changes between two metal electrodes. The LM358 op-amp conditions the weak signal, the ADS1115 ADC converts it to a high-resolution digital value, and the Arduino Uno translates that into resistance displayed on a 16x2 I2C LCD. Switch between dry, wet, and stress-test modes to watch resistance plummet when skin is moist or heart rate spikes.
What You'll Learn
- Interfacing a 16-bit ADS1115 ADC with Arduino Uno and configuring I2C communication
- Conditioning high-impedance skin signals using an LM358 operational amplifier in non-inverting mode
- Converting raw ADC counts to resistance (ohms) and mapping physiological states
- Designing and executing a controlled experiment to analyze galvanic skin response across wet, dry, and stressed conditions
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| ADS1115 ADC | 1 |
| LM358 Op-Amp | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 100kΩ Resistors | 10 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| Metal Electrode | 2 |
| M-M Wires | 20 |
| 9V Battery Snap | 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
If you’re a CBSE Class 12 student building a physics investigatory project on skin impedance and need reliable data, or a B.Tech ECE freshman exploring biomedical instrumentation, this kit eliminates the struggle of sourcing and calibrating parts. ATL Tinkering Lab mentors will find it a ready-to-deploy bio-electronics module, while science fair competitors get a compact, safe, low-voltage galvanic skin response tool.
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 to launch the AI companion that walks you through wiring, code upload, and signal calibration. For extra support, message us on WhatsApp and our engineers will reply within hours.
Can this kit be used to create a basic lie detector?
Yes, skin resistance (galvanic skin response) is a core element of polygraph tests. By logging resistance changes during questioning, you can construct a simple arousal-based indicator—making it a compelling psychology and technology crossover project.
Does the kit include a battery?
The kit includes a 9V battery snap connector but not the battery itself, due to shipping restrictions. Any standard 9V battery will power the Arduino and circuit.
How do I systematically compare dry and wet skin resistance?
The electrodes attach comfortably to fingertips. The AI companion provides a step-by-step experiment guide: start with clean, dry hands, record resistance, then wet hands slightly and note the dramatic drop, and finally repeat after a brief physical exercise to observe stress-related changes.
ADS1115 measures skin resistance between electrodes. Compare wet, dry and stressed conditions.
What's in this kit
- Arduino Uno R3
- ADS1115 ADC
- LM358 Op-Amp
- 16x2 LCD
- I2C Backpack
- 100kΩ Resistors x10
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- Metal Electrode x2
- M-M Wires x20
- 9V Battery Snap
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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