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An IoT based automatic alerting device that consists of laser and a precise Light Dependent Resistor to detect the laser which is employed to constantly monitor the fluid level. When the fluid level is below the critical level which will be defined by laser, it will alert the patient through buzzer, nurses and doctors through mobile app and the …

  • Updated Jan 13, 2023
  • Kotlin

The system is implemented using an Arduino Pro Mini for PWM-based conveyor motor speed control and an STM8 microcontroller for automatic item counting. An ESP32-S3 UNO is used as an IoT gateway to collect system data and publish it to the Ubidots platform via MQTT for real-time monitoring.

  • Updated Jun 11, 2026
  • C++

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