Pulse Rate Sensor Kit with Arduino Uno - Heart Rate Project for Kids
See Your Heartbeat Come Alive: Arduino Pulse Rate Sensor Kit with OLED and Flashing LED
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Place a fingertip on the tiny pulse sensor and watch your BPM appear on a sharp OLED screen, while a red LED blinks in perfect rhythm with every heart beat. This kit transforms abstract biology into a crisp, real-time electronics display-ideal for science fairs, classroom demonstrations, or simply understanding how medical wearables work from the inside out.
What You'll Build
A portable heart rate monitor that measures your pulse from the tip of your finger. The Arduino reads the sensor's signal, calculates beats-per-minute instantly, and shows the value on a 0.96-inch OLED display. A pair of red LEDs flash each time the sensor detects a heartbeat, giving a vivid, visual confirmation of the rhythm.
What You'll Learn
- How an optical pulse sensor detects blood volume changes
- Programming Arduino to sample analog signals and compute BPM
- Driving an I2C OLED display with custom graphics and numbers
- Translating sensor events into real-world LED feedback
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| KY-039 Pulse Sensor | 1 |
| 0.96in OLED | 1 |
| 5mm Red LED | 2 |
| 220? Resistors | 5 |
| 10k? Resistors | 5 |
| 400-pt Breadboard | 1 |
| 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
Young inventors exploring how the human body can talk to electronics. Perfect for CBSE middle-school science projects, ATL Tinkering Lab activities, or first-time microcontroller tinkerers who want a meaningful build. Even B.Tech ECE students will appreciate a quick, clean pulse-monitoring demo for hackathons or mini-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 if I get stuck during the build?
Scan the QR code to start a conversation with the AI companion who knows every wire and line of code; if you still need help, our WhatsApp support responds within hours.
Can the sensor work through dark skin or nail polish?
The optical sensor uses infrared light that penetrates lightly pigmented surfaces well, though very dark nail polish may reduce signal clarity - a bare finger gives the most consistent readings.
Will the OLED show anything besides BPM?
Yes, you can modify the code to display a heartbeat waveform, a beating heart icon, or a simple line graph - the AI companion includes sample code variations for all three.
Is the kit safe for a 5-year-old?
All connections are 5V through the Arduino, using jumper wires that sit securely in the breadboard. Adult supervision is recommended for the initial assembly and battery handling, but the finished project is safe to use.
Heart rate pulse sensor on fingertip reads BPM on OLED. LED flashes with each heartbeat.
What's in this kit
- Arduino Uno R3
- KY-039 Pulse Sensor
- 0.96in OLED
- 5mm Red LED x2
- 220? Resistors x5
- 10k? Resistors 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