Embedded × IoT
IoT-Based Generator Monitoring & Control System
A physical ESP32-based generator controller combining sensors, relays, remote scheduling, live fuel monitoring, a safety shutdown mechanism and a web application.
3.0 kVA
Test generator
15 L
Tank
50 °C
Safety cutoff
1.31 s
Mean command response
System
An ESP32S NodeMCU interfaces with an ultrasonic fuel-level sensor, DHT11 temperature sensor, a four-channel relay board and a linear actuator for choke control.
Remote control
The web application provides generator ON/OFF control, timed operation, real-time fuel indication and historical fuel-use visualization. A Node.js/Express backend handles requests and MongoDB stores operational data.
Safety
Generator-room temperature is monitored continuously. When the temperature reaches the configured 50 °C safety threshold, the controller can shut the generator down to reduce fire and equipment-damage risk.
Validation
The complete prototype was mounted on a 3.0 kVA generator and tested repeatedly. Remote control commands produced a mean physical response time of 1.31 seconds.
Evidence