Sweat pH Lactate Threshold Kit Arduino Nano Textile Electrode India
Sweat-Powered Lactate Threshold Analyzer with Arduino Nano and Textile pH Electrode
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Lactate threshold isn't just a lab metric anymore. This kit lets you stitch a textile pH electrode into your workout shirt, pair it with an Arduino Nano, and read real-time sweat acidification that mirrors muscle fatigue. The onboard MAX30102 captures heart rate while the MPU6050 tracks motion, so every stride, spike in pulse, and drop in pH gets time-stamped to an SD card. It's a fully wearable physiological dashboard you solder and code yourself.
What You'll Build
You will assemble a compact, battery-powered unit that clips onto any compression shirt with a snap-on textile electrode. Once seated against the skin, it continuously logs sweat pH, heart rate, acceleration, and gyroscope data. After a workout, pull the MicroSD card and plot the pH trajectory against heart rate zones to see exactly where your lactate threshold kicked in-without a single blood draw.
What You'll Learn
- Interfacing an analog pH module with a conductive textile electrode on flexible fabric
- Reading and fusing real-time data from MAX30102 (SpO?/HR) and MPU6050 (6-axis IMU)
- Timing and logging multi-sensor streams to a MicroSD card using DS3231 RTC
- Correlating sweat pH inflection points with HR trends to detect the onset of fatigue
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| Analog pH Module | 1 |
| MAX30102 | 1 |
| MPU6050 | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 3.7V LiPo 1000mAh | 1 |
| TP4056 Module | 1 |
| 10k? Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| Conductive Textile Electrode | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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
This is for advanced makers who already have coding and soldering fluency-B.Tech ECE/EEE final-year students prototyping a wearable health monitor, Smart India Hackathon teams tackling sports analytics, or researchers at NIT/IIT/VIT validating sweat-based lactate sensing. If you've outgrown off-the-shelf fitness bands and want a ground-up, research-grade platform you can modify and publish, you're our user.
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 walks you through debugging signals, soldering the textile electrode patch, and calibrating the pH module. For anything the AI can't solve, you can ping us on WhatsApp-our team responds within a day.
Can I wash the textile electrode after every workout?
Yes, gently hand-wash the electrode patch with mild detergent and air dry. Avoid twisting the snap connector. Each kit includes one electrode; we'll soon offer spare electrode packs individually.
How does pH really track lactate threshold?
Sweat pH drops as lactic acid accumulates in the working muscle and is partially excreted through sweat. The steepest decline in pH typically coincides with the ventilatory threshold-an indirect but well-documented marker for lactate accumulation. By logging pH alongside heart rate and motion, you can spot that inflection point without blood sampling.
What if my skin pH varies day to day?
Skin baseline pH can shift due to diet or hydration, so always take a short rest reading before your workout; the AI build guide shows you how to zero-offset the sensor in code. Logging both absolute and delta pH gives you a robust fatigue curve.
Fitness - Textile pH sensor in workout shirt detects sweat pH shift correlating with lactate threshold and muscle fatigue.
What's in this kit
- Arduino Nano
- Analog pH Module
- MAX30102
- MPU6050
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- 3.7V LiPo 1000mAh
- TP4056 Module
- 10k? Resistors x5
- 100nF Caps x10
- PCB Prototype Board x2
- Conductive Textile Electrode
- Soldering Iron
- Solder Wire
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.
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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