IoT/2025

iGro Dryer Device

The iGro Dryer Device is AgGen’s edge dryer controller: indoor/outdoor temperature sensing, master relay and exhaust fan, crop product profiles, and secure Azure IoT connectivity for telemetry and remote commands.

Problems

Growers needed a dryer that runs fail-safe in the field when connectivity drops, yet still accepts remote modes, schedules, and OTA updates.

Solution

Local modes (Auto-Temp, Product, Schedule, Manual) with offline persistence, plus Azure DPS/X.509 identity for D2C telemetry and C2D twin/OTA updates.

Outcomes

Auto+

Product modes

Offline

LittleFS + RTC

OTA

Azure IoT path

IoT devices

One device. Hardware in the field.

01Edge hardware · drying

iGro Dryer Device

ESP32 smart dryer controller with DS18B20 sensing, master relay + exhaust fan, TFT/keypad UI, RTC + LittleFS offline state, Wi-Fi/cellular failover, and Azure IoT Hub telemetry plus twin/OTA control.

01
DS18B20 indoor/outdoor sensing with exhaust and master relays
02
Crop product modes: Coconut, Bitter Gourd, Mushroom, Green Chilli
03
TFT/keypad local UI with RTC + LittleFS offline state
04
Azure IoT Hub telemetry, twin control, and OTA

Engineered with

ESP32Azure IoTDS18B20OTA

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