Smart Shower Timer with Water Budget
Arduino Smart Shower Timer Kit with Water Budget & Flow Sensor
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
In water-stressed cities across India, hostels and shared apartments struggle to control long showers. This kit lets you build a smart timer that measures water flow with a YF-S201 sensor, displays the remaining budget on an LED ring, and cuts off the supply with a relay once the 8-litre limit is reached. You can easily reconfigure the budget to suit any household or institutional need.
What You'll Build
You'll assemble and program an Arduino Uno-based controller that reads water flow in real time, tracks usage against a configurable budget, and alerts users with a visual ring countdown. The finished device mounts inline with a standard shower hose and can store multiple user profiles for different water allowances.
What You'll Learn
- Calibrating a hall-effect water flow sensor for accurate volume measurement
- Programming Arduino to calculate instantaneous flow rate and cumulative usage
- Driving a WS2812B 12-LED ring to create a visual water budget countdown
- Using a relay module to safely interrupt a 12V water solenoid valve
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| YF-S201 Flow Sensor | 1 |
| 5V Relay Module | 1 |
| DS3231 RTC | 1 |
| WS2812B 12-LED Ring | 1 |
| 470Ω Resistors | 5 |
| 1N4007 Diode | 5 |
| 100nF Caps | 5 |
| PCB Prototype Board | 2 |
| 12V Adapter | 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 advanced kit is ideal for B.Tech ECE/EEE students building a mini project or final-year home automation prototype. Smart India Hackathon teams working on water conservation will find it production-ready. CBSE Class 12 students with strong Arduino skills can use it for a science exhibition, while ATL Tinkering Lab instructors might assign it to senior groups.
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 instantly chat with our AI companion trained on this kit. It can debug issues step by step, and our WhatsApp support will reply within hours.
Can I set different water budgets for different family members?
Yes, the Arduino sketch can store multiple profiles—each with a unique budget—using the DS3231 RTC to switch profiles at scheduled times. Modify the code to select a profile with a button press.
Does this kit include a water solenoid valve?
The relay module switches an external 12V solenoid valve (not included). You can source any standard valve; the kit provides the diode and capacitor to protect the relay from back-EMF.
Can I log water usage data over time?
Absolutely. With the DS3231 real-time clock, you can timestamp each shower session and either echo readings via serial or add an SD card module (not included) to save CSV logs for later analysis.
YF-S201 flow meter measures shower water use. LED timer shows 8-litre budget remaining. Relay cuts water at limit.
What's in this kit
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.
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