Pulse Rate Display Wristband Kit with Arduino Nano + Sensor
Pulse Rate Display Wristband Kit with Arduino Nano — See Your Heartbeat in Real Time
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
The moment you strap on this homemade wristband and see your heartbeat pulsing in real-time on the tiny OLED screen, the world of biomedical electronics will click into place. You’ll grasp how hospitals measure vital signs, and you’ll have built the core of a fitness tracker from scratch. This kit distills that experience into a fun, guided project perfect for young makers and curious beginners.
What You'll Build
A functional pulse rate display wristband that clips onto your finger, reads your heartbeat via an optical sensor, and shows beats per minute (BPM) on a crisp 0.96-inch OLED. With each pulse, a red LED flashes in sync, giving you visual feedback just like a medical monitor. The whole circuit sits neatly on a breadboard, and you can easily transition it to a wearable strap for a DIY smart band.
What You'll Learn
- How an optical pulse sensor (photoplethysmography) detects blood volume changes
- Programming Arduino Nano to read analog signals and calculate real-time BPM
- Interfacing an I2C OLED display to show live biometric data
- Driving LEDs with conditional logic to create a heartbeat visual indicator
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| KY-039 Pulse Sensor | 1 |
| 0.96in OLED Display | 1 |
| 5mm Red LED | 2 |
| 220Ω Resistor | 5 |
| 10kΩ Resistor | 5 |
| 100nF Ceramic Capacitor | 5 |
| 400-pt Breadboard | 1 |
| Male-to-Male Jumper 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
This kit is ideal for school students (CBSE Class 8-12) exploring health-tech projects, ATL Tinkering Lab members looking for a quick wearable win, and B.Tech ECE/EEE freshmen who want a hands-on introduction to biomedical instrumentation. Even a 10-year-old can build it with a parent’s guidance, making it perfect for parent-child STEM bonding and Smart India Hackathon prototyping.
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?
Our AI companion (scan the QR code on the box) recognises your exact kit and will guide you step-by-step. If you prefer human help, WhatsApp our support team—same engineers who built the kit.
Can I wear this wristband on my wrist like a smartwatch?
The pulse sensor is designed for fingertip measurement, but you can mount the circuit in a 3D-printed case with a band for a wrist-worn prototype. The AI companion includes tips for creating a wearable enclosure.
Does this kit require soldering?
No soldering is needed—all connections are made on the breadboard using jumper wires, so it’s completely reusable and safe for beginners.
Will this work with a 5V power bank instead of a 9V battery?
Yes, the Arduino Nano’s onboard regulator accepts 5V via the 5V pin, so you can power it from a USB power bank for a portable wristband. Just leave the 9V battery snap disconnected.
KY-039 pulse sensor reads BPM and shows on OLED. Red LED flashes with each heartbeat.
What's in this kit
- Arduino Nano
- KY-039 Pulse Sensor
- 0.96in OLED
- 5mm Red LED x2
- 220Ω Resistors x5
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 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