PIC16F877A-based temperature monitoring system with ADC reading, UART logging, and overheat alert mechanism
This embedded systems project implements a complete temperature monitoring solution using the PIC16F877A microcontroller and LM35 temperature sensor. The system provides accurate temperature readings, real-time UART data logging, and an intelligent overheat alert mechanism for safety demonstrations.
The project showcases fundamental embedded systems concepts including ADC configuration, sensor interfacing, and communication protocols, making it ideal for industrial monitoring and safety applications.
LM35 sensor provides precise temperature measurements with 10mV/°C linear scale
10-bit ADC resolution for accurate analog-to-digital conversion of temperature data
Real-time serial communication for continuous temperature monitoring and data logging
Configurable threshold-based overheat detection with visual and audible alerts
Mastered ADC module configuration including acquisition time, conversion clock selection, and reference voltage settings for optimal sensor reading accuracy.
Learned proper sensor calibration techniques and signal conditioning to minimize noise and ensure stable temperature readings.
Implemented efficient interrupt-driven architecture to handle simultaneous display updates, UART transmission, and alert monitoring without delays.