Smart Conveyor Monitoring & Control System

Project Overview

This project simulates a smart conveyor system using an ARM Cortex-M microcontroller within the Proteus environment. The system is designed to:

• Measure conveyor speed
• Control motor speed via a potentiometer
• Detect passing objects
• Display all relevant information on an LCD
• Include a critical emergency stop function triggered by an external interrupt

---

Demo

Smart.Conveyor.Monitoring.mp4

---

System Features & Components

1. Speed Measurement (Timer Capture)

• Input: Simulates pulse signals from an encoder using a Function Generator in Proteus
• Logic: Measures the time between two rising edges using the microcontroller's Timer Input Capture mode
• Constraint: Performed without interrupts (polling-based)
• Output: Calculated speed displayed on the LCD

2. Motor Speed Control (ADC + PWM)

• Input: Potentiometer connected to an ADC channel
• Logic: Reads ADC value and generates a corresponding PWM signal to drive the motor
• Output: Motor speed (0-100%) displayed on the LCD

3. Object Detection (Polling)

• Input: Digital input simulating an IR sensor detecting objects
• Logic: Software-based polling method to detect the falling edge
• Constraint: Implemented purely in software, no interrupts
• Output: Counter for passing objects updated on the LCD

4. Emergency Stop (Interrupt)

• Input: Push button connected to an external interrupt pin
• Logic: Uses an external interrupt to detect a button press
• Constraint: Must be interrupt-based
• Output: Motor stops immediately, and "EMERGENCY STOP" is shown on the LCD

---

Technical Stack

• Simulation Environment: Proteus
• Microcontroller: ARM Cortex-M (STM32)
• Core Peripherals:
  • Timer (Input Capture Mode)
  • ADC (Analog-to-Digital Converter)
  • PWM (Pulse Width Modulation)
  • GPIO (Digital input and LCD)
  • EXTI (External Interrupts)
• Display: 16x2 Character LCD

---

Contributors

• Judy Ashmawy
• Mostafa Ali
• Ibrahim Fateen
• Shahd Mahmoud