IoT-Based Environmental and Safety Monitoring and Control System - Netone Cellular (Pvt) Ltd, Harare, Zimbabwe
# NetOne IoT Environmental and Safety Monitoring System
## Author
Tinashe Ruhonde | R231643Y | BEng Computer Hardware Engineering
University of Zimbabwe | NetOne Cellular (Pvt) Ltd
## Project Description
IoT-Based Environmental and Safety Monitoring and Control System
developed during industrial attachment at NetOne Cellular (Pvt) Ltd, Harare, Zimbabwe.
## System Components
- ESP32-WROOM-32 microcontroller
- DHT22 temperature and humidity sensor
- MQ-2 smoke and combustible gas sensor
- MQ-6 LPG gas sensor
- Flame detection sensor
- Cooling fan, exhaust fan, buzzer alarm
- RGB LED status indicators
## Features
- Real-time environmental monitoring
- Automated threshold-based actuator control
- Blynk mobile and web dashboard
- Three-tier escalation alert system
- Push notification delivery
## Thresholds
- Temperature Warning: 35C | Critical: 45C
- Humidity Warning: 70% | Critical: 85%
- MQ-2 Gas Warning: 400ppm | Critical: 700ppm
- MQ-6 LPG Warning: 400ppm | Critical: 700ppm
## Files
- sketch_may30a.ino — ESP32 firmware source code
- Screenshots — Blynk dashboard and system evidence