Flow Rate Water Meter Kit with Arduino Uno + Sensor
Water Flow Meter Kit: Arduino Uno with YF-S201 Sensor & LCD
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit lets you build a precise digital water flow meter using the YF-S201 sensor and an Arduino Uno. Count pulses from the sensor’s internal Hall-effect rotor, convert them into real-time flow rate and total volume, and display the results clearly on a 16x2 LCD. Perfect for monitoring home water tanks, automating garden irrigation, or creating a standout CBSE Class 12 physics or computer science project that demonstrates sensor data acquisition and embedded programming.
What You'll Build
A self-contained instrument that reads water flow in litres per minute and accumulates total litres used, all updated live on the LCD screen. The circuit connects the YF-S201 sensor to an interrupt pin on the Arduino, processes the raw pulse train with debouncing caps, and uses the I2C backpack to simplify the display wiring. By the end, you’ll have a working meter you can install in a plumbing line (up to 30 L/min) and log readings for analysis.
What You'll Learn
- Capture high-frequency pulse interrupts from a Hall-effect flow sensor
- Convert raw pulse counts into calibrated flow rate and volume using maths in Arduino code
- Drive a 16x2 LCD over I2C to display live measurements without blocking the main loop
- Build a robust, noise-filtered measurement circuit using capacitors and resistors
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| YF-S201 Flow Sensor | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 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
Ideal for CBSE Class 11-12 students crafting physics or computer science investigatory projects, B.Tech ECE/EEE freshers preparing for Smart India Hackathon prototypes, and ATL Tinkering Lab mentors demonstrating IoT concepts. Makers looking to instrument a water harvesting system or automate a college fountain will also find everything they need in this box. The intermediate build demands basic familiarity with Arduino IDE and breadboarding, making it a compelling challenge for ages 15-18.
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 provides step-by-step debugging prompts specific to this kit’s circuit and code. If that doesn’t solve it, drop us a WhatsApp message and we'll help you troubleshoot.
Can I use this meter with water pipes under pressure?
The YF-S201 sensor handles up to 1.75 MPa, so it works fine with typical domestic water lines. Just ensure the flow stays between 1 and 30 litres per minute for accurate readings.
Is this project suitable for a CBSE physics practical exam?
Yes — it demonstrates sensor interfacing, interrupt-based measurement, and real-time data display, all core to the Class 12 curriculum. You can log flow rate and volume data to show statistical analysis.
What is the maximum flow rate the sensor can measure?
The YF-S201 is rated for 1 to 30 L/min. Beyond 30 L/min, pulse output may saturate, though readings can be approximated up to 60 L/min with reduced accuracy.
YF-S201 flow sensor counts pulse interrupts to calculate litres per minute and total volume on LCD.
What's in this kit
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