Temperature Control System (Microprocessors Course Project)

This Project is to design temperature control system using two ATMega32 microcontrollers with the help of platformio and proteus.

• Uses SPI communication protocol
• Uses LM35 Temperature Sensor for measurement of temperature
• 16×2 LCD is used to display temperature set point
• It controls temperature by turning on and off the heater or cooler
• Show warning if the temperature is in the bad state
• Analyze the waveform of motors signal using oscilloscope

Master Chip

• Receives two temperature values A and B from LM35 sensors
• Compares the two values using AC
• As long as A is higher than B, converts the analog value of A to digital using ADC
• Prints the digital value of A on a 16x2 alphanumeric LCD
• Sends the digital value of A to the slave

Slave Chip

• Receives the temperature value from the master
• Turn on the cooler motor for temperatures between 25 and 55 degrees (starting with a duty cycle of 50% plus 10% for every additional 5 degrees)
• Turn on the heater when the temperature is lower than 20 degrees
• Red warning LED blink when the temperature is higher than 55 degrees
• When one motor is on, the other motor should be off

Design