Microprocessor-based temperature monitoring system using the AT89C52 microcontroller, ADC, LCD display, and motor control. Implemented in Assembly with interrupts.

This project implements a temperature monitoring system using the AT89C52 microcontroller. The system reads temperature data using an LM35 sensor, processes it via an ADC, and displays the results on an LCD. It also controls motors based on temperature thresholds.

• Temperature Measurement: Uses the LM35 temperature sensor.
• ADC Conversion: Analog temperature data is converted to digital values.
• LCD Display: Real-time temperature output on an LCD screen.
• Motor Control: Activates or deactivates motors based on temperature levels.
• Interrupts Implementation: Efficient system response using microcontroller interrupts.

• Microcontroller: AT89C52
• Temperature Sensor: LM35
• LCD Display: 16x2
• Analog-to-Digital Converter (ADC): Interfacing for temperature readings
• Motors: Controlled based on temperature thresholds
• Buzzer: Alerts when temperature exceeds critical limits

• Initializes LCD, ADC, and Ports.
• Reads temperature from the sensor.
• Converts temperature data and displays it.
• Checks predefined temperature thresholds and activates motors/buzzer.

• Normal: Motor 1 ON, Motor 2 OFF.
• High Temperature: Motor 1 ON, Motor 2 OFF, LCD displays "HIGH".
• Dangerous Temperature: Motor 1 OFF, Motor 2 ON, LCD displays "DANGER".
• Low Temperature: Both motors OFF.

Use an 8051 assembler to compile main.asm into a .hex file:

# Assemble the code
gpasm -p AT89C52 main.asm -o main.hex

1. Load the Proteus project file (8051 LM35 ADC LCD.pdsprj).
2. Attach the compiled main.hex file to the microcontroller.
3. Run the simulation and observe LCD temperature readings.

• Assembly Code (main.asm)
• HEX File (main.hex)
• Proteus Simulation File (8051 LM35 ADC LCD.pdsprj)
• Project Report (System design and implementation details)

• Course: Microprocessor (CC421)
• Instructor: Dr. Sherif Fadel
• Team Members: Anton Ashraf, Marwan Hazem

This project is for academic purposes. Feel free to modify and enhance it!