Water Tank Level Monitor Kit with ESP32 + DHT22
ESP32 Water Tank Level Monitor Kit with DHT22 – Real-Time Dashboard
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Tired of climbing up to check your overhead tank? This kit lets you build a web-based monitoring system that displays water level, temperature, and humidity in real time on any device. Using an ESP32, an ultrasonic sensor, and a DHT22, you'll stream data to a browser dashboard that updates every 100 milliseconds, with relay control for pump automation.
What You'll Build
A fully functional IoT dashboard that graphs tank water level as a percentage, displays ambient temperature/humidity, and lets you control a relay (for a pump) directly from the browser. The ESP32 acts as a WebSocket server, pushing sensor data bi-directionally, so you see live changes instantly. No cloud account needed — the system runs on your local Wi-Fi.
What You'll Learn
- Program an ESP32 to read HC-SR04 ultrasonic distance and convert to water level percentage.
- Interface DHT22 sensor for temperature and humidity monitoring via digital pin.
- Implement a WebSocket server on ESP32 for real-time, bi-directional communication with a browser.
- Create an HTML/CSS/JavaScript dashboard with live charts using Chart.js and relay control buttons.
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| HC-SR04 | 1 |
| 5V Relay Module | 1 |
| 4.7kΩ Resistors | 5 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| Micro USB Cable | 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 working on physics or computer science projects involving IoT. B.Tech ECE/EEE students can use it for mini-projects, Smart India Hackathon prototypes, or lab demonstrations. Also fits ATL Tinkering Labs exploring real-world sensor applications and embedded web servers. No prior WebSocket experience required — the AI guide walks through every step.
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 open the AI companion trained on this kit. It provides step-by-step debugging and you can message us on WhatsApp for further help.
Can the dashboard be accessed from outside my home network?
The basic project works on local Wi-Fi, but the AI guide includes an optional section to expose it via port forwarding or a free service like Ngrok if you want remote monitoring.
Is calibration required for the HC-SR04 sensor?
Yes, the code includes calibration constants to convert distance to water level percentage. The AI companion shows how to adjust for your specific tank dimensions.
Do I need to know JavaScript?
Not beforehand — the dashboard HTML/JS is pre-written and explained in the build guide. You'll customize it while learning basics of WebSocket communication.
Tank Monitoring — ESP32 WebSocket server pushes DHT22 and HC-SR04 data to browser dashboard every 100ms bidirectionally.
What's in this kit
- ESP32 Dev Board
- DHT22
- HC-SR04
- 5V Relay Module
- 4.7kΩ Resistors x5
- 10kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- Micro USB Cable
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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