ATL Plant Transpiration Sensor Kit
ATL Plant Transpiration Sensor Kit – Arduino-Powered Humidity Experiment for Classrooms
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Plants release water vapour through tiny pores—but you can’t see it. With this kit, you’ll seal a DHT22 sensor and a small potted plant inside a plastic bag to capture humidity changes, then use an Arduino Nano to log the data and calculate the transpiration rate. It’s a hands-on biology-meets-electronics investigation perfect for CBSE Class 7–10 students and ATL tinkering labs.
What You'll Build
You’ll assemble a self-contained plant transpiration measurement system. One DHT22 sensor goes inside a sealed bag with the plant to track humidity rise, while a second sensor monitors ambient conditions outside the bag. The Arduino Nano reads both sensors every few seconds, computes the rate of humidity increase, and sends the real-time transpiration rate to your computer screen via USB. In 2–3 hours, you’ll have a working scientific instrument that makes an invisible biological process measurable.
What You'll Learn
- How transpiration works and why environmental factors like light and temperature change the rate
- Wiring and reading digital humidity/temperature sensors (DHT22) with Arduino using simple jumper connections
- Capturing time-series sensor data and programming a moving-average calculation to find the slope—rate of change of humidity
- Prototyping a reliable scientific instrument on a breadboard, and documenting an experiment from hypothesis to conclusion
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| DHT22 Temperature & Humidity Sensor | 2 |
| Large Sealed Plastic Bag | 3 |
| Half-Size Breadboard | 1 |
| Mini USB Cable | 1 |
| Male-to-Male Jumper Wires | 15 |
| Small Potted Plant | 2 |
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 kit is designed for CBSE Class 7–10 biology and computer science students exploring environmental sensing. It fits perfectly into Atal Tinkering Lab (ATL) projects, school science exhibitions, and STEM clubs—anywhere a young maker wants to combine Arduino programming with real botany experiments. It also supports Smart India Hackathon junior tracks and B.Tech ECE/EEE introductory lab work.
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 launch the AI build companion with step‑by‑step wiring and code upload help. Our support team is also available on WhatsApp.
Can I use any plant for the transpiration experiment?
Yes. Small potted plants with leaves work best—like basil, mint, or common houseplants. Succulents are not recommended because they transpire very slowly, which can make the humidity change hard to detect.
How accurate is the transpiration rate calculation?
The DHT22 sensor measures humidity to ±2% RH. The Arduino sketch calculates the slope of the humidity curve using a moving window; this gives a reliable relative measure for comparing transpiration under different conditions (light, wind, temperature).
Do I need prior Arduino coding experience?
No. The kit includes pre‑written code that you upload to the Nano with one click. The AI companion explains every line, so beginners can follow along and later tweak variables like the measurement interval to design their own variations.
DHT22 inside a sealed bag with a plant measures humidity increase over time — calculates transpiration rate.
What's in this kit
- Arduino Nano
- DHT22 x2
- Sealed Plastic Bag Large x3
- Half Breadboard
- MiniUSB Cable
- M-M Wires x15
- Small Potted Plants x2
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