Stop Grain Hot Spots Early with Arduino Mega + DHT22 Temperature & Humidity Array Kit

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

Grain stored in bulk silently develops hot spots that can destroy tonnes of produce within days. This advanced kit equips you to build a six-probe DS18B20 temperature array paired with two DHT22 humidity sensors, all monitored by an Arduino Mega 2560. With onboard SD logging and a real-time clock, you can pinpoint the exact depth and time of temperature anomalies — a critical tool for India’s grain godowns.

What You'll Build

A complete multi-sensor monitoring system that you'll solder onto a PCB prototype board, with six waterproof DS18B20 probes deployed at varying bin depths, and two DHT22 sensors capturing ambient air conditions. The OLED displays live readings and alerts, while the microSD card logs every data point with a timestamp. This is the same principle used in commercial grain storage automation, now accessible as a hands-on build.

What You'll Learn

• Solder through-hole components and wire up a multi-sensor bus on a prototype PCB
• Interface multiple one-wire DS18B20 temperature probes and DHT22 sensors with Arduino Mega
• Log sensor data with DS3231 RTC timestamps to a microSD card in CSV format
• Create an OLED dashboard showing temperature zones and humidity thresholds

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.