Blind Stick Detector Pro Kit - Automatic Water Tank Level Control
Blind Stick Detector Pro Kit - Build an Automatic Water Tank Fill Controller with Arduino Uno & Ultrasonic 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.
Imagine never having to climb up to check your overhead tank again. This kit transforms the popular Blind Stick Detector Pro into a practical home automation tool that can prevent water waste. Using an HC-SR04 ultrasonic sensor, it constantly measures the distance to the water surface. When the tank reaches the preset full level, the system triggers a 5V relay to close your solenoid valve (not included), stopping the fill automatically.
What You'll Build
You'll assemble a battery-operated microcontroller system on a 400-point breadboard that reads water level data from the ultrasonic sensor and makes decisions through Arduino logic. Red and green LEDs provide visual fill status-green when water is below the threshold, red when the tank is full and the relay activates to cut off the water supply. This is a real-world automation project ready to integrate with your home's plumbing.
What You'll Learn
- Interfacing an HC-SR04 ultrasonic sensor with Arduino Uno for precise distance measurement
- Writing threshold-based control logic in Arduino C to automate relay switching
- Safely driving high-power loads through a 5V relay module with 1N4007 flyback diode protection
- Designing a portable, battery-operated embedded system for real-world home automation
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| HC-SR04 | x1 |
| 5V Relay Module | x1 |
| 5mm Red LED | x2 |
| 5mm Green LED | x2 |
| 1N4007 Diode | x5 |
| 10k? Resistors | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x20 |
| 9V Battery Snap | x1 |
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 intermediate kit is ideal for CBSE Class 11-12 students working on home automation projects, B.Tech ECE and EEE undergraduates prototyping for Smart India Hackathon, and ATL Tinkering Lab members across IIT, NIT, VIT, or BITS campuses. If you already have basic Arduino familiarity and want to automate a real household task, this project bridges classroom learning and practical problem-solving.
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?
Your AI companion provides step-by-step instructions specific to this kit, from wiring to code flashing. If you need a human touch, our WhatsApp support team responds within a few hours-straight from Bengaluru engineers.
Can I use this kit to monitor a sump tank instead of an overhead tank?
Yes, you can mount the HC-SR04 sensor to look downward into a sump tank. The logic remains the same-measure distance and trigger the relay when the water reaches a defined minimum (empty) instead of full. The AI companion includes calibration tips for different tank orientations.
Does the kit include the solenoid valve?
The solenoid valve is not included because household pipe sizes and voltage ratings vary. This kit controls any 5V-240V AC/DC valve via the relay module; you only need a compatible valve from your local hardware store.
Is prior coding experience required, or does the kit include example code?
Basic Arduino familiarity is expected, but the AI companion provides a fully commented code template that you can modify and upload. It explains each logic block so you'll understand how threshold detection works even if you're a coding beginner.
Accessibility - HC-SR04 ultrasonic measures tank fill level and closes relay solenoid valve when full.
What's in this kit
- Arduino Uno R3
- HC-SR04
- 5V Relay Module
- 5mm Red LED x2
- 5mm Green LED x2
- 1N4007 Diode 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