Arduino Data Logger Kit: Save Temperature & Light to CSV and Chart in Excel

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

Turn an Arduino Uno into a dedicated environmental recorder. The kit captures temperature and humidity from a DHT22, plus ambient light from two LDRs, tags every reading with a real-time clock timestamp, and writes the results as a tidy CSV file to a microSD card. Open the file in Excel or Google Sheets and plot multi‑series charts that reveal daily patterns — ideal for classroom science experiments, greenhouse monitoring, or simply learning how data acquisition works.

What You'll Build

A compact data logger that sits on a breadboard and runs off a 9 V battery. Once you load the code, the Arduino reads the sensors every minute and stores the values with date and time on the SD card. Remove the card, insert it into any computer, and you’ll see columns for Date, Time, Temperature, Humidity, Light (Sensor 1), and Light (Sensor 2). No extra software is needed — just open the CSV file and the data is ready for charting.

What You'll Learn

• Interface a DHT22 digital sensor and analog LDRs with an Arduino Uno
• Use the Arduino SD library to write CSV data to a microSD card
• Integrate a DS3231 real‑time clock for accurate timestamps on every record
• Plot multi‑variable data in Excel to spot trends and correlations

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately