Track Plant Respiration in Real Time with the CO2 Plant Respiration Logger Kit (Arduino Uno + MH-Z19B)

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Watch a plant breathe — that’s the magic of this kit. You’ll seal a small plant inside a transparent chamber with an MH-Z19B CO2 sensor and an Arduino Uno, then log CO2 concentration changes over hours. Graph the rise and fall, pinpointing photosynthesis in light and respiration in darkness.

What You'll Build

A compact, battery-powered data logger that records CO2 levels inside a sealed plant chamber every second. The 0.96-inch OLED display shows live readings, while an RTC timestamps each data point for later graphing. End result: a real-time CO2 curve that proves photosynthesis absorbs CO2 while respiration releases it.

What You'll Learn

• How CO2 concentration reflects plant metabolism in light and dark
• Interfacing the MH-Z19B NDIR sensor with Arduino Uno for accurate gas measurement
• Using the DS3231 RTC to timestamp sensor data for time-series analysis
• Displaying real-time sensor data on a 0.96in OLED and exporting for Excel graphs

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11–12 biology students investigating photosynthesis & respiration, ATL Tinkering Lab innovators building climate-monitoring prototypes, and any young maker curious about real-world sensor science. Also a ready-to-use mini project for B.Tech 1st‑year students at VIT, BITS, or NIT.

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.