MICROCONTROLLER BASED TEMPERATURE METER using AT89c51

SECTION 1: PROJECT TYPE

Micro controller (AT89C51) hardware design with software development (Device Driver).

SECTION 2: PROJECT DESCRIPTION

                        Measuring the impact of environmental constraints is important for proper data analysis and control. Different types of data loggers and data acquisition systems are available in the market to perform the task well. Temperature measurement is today more important. The ambient temperature keeps varying during different times of the day and night at different places. Temperature measurement can do for weather forecast or for automation in electronics devices and industries.

                            
Here we describe a temperature measurement device which uses microcontroller AT89c51, Temperature sensor and other components. The temperature is measured at user defined interval. Each time the current temperature goes above the user defined threshold value, the buzzer sounds.

SECTION 3: PROJECT OUTLINE

Ø  A brief introduction to internal architecture of micro controller.

Ø  An over view of programming of micro controller.

Ø  An overview on assembly language.

Ø  An overview on interfacing 16X2 LCD.

Ø  An overview of Buzzers.

Ø  An overview on interface of switches and led.

 

SECTION 4: INTERFACES USED

Ø  Sensors interfacing.

Ø  16X2 LCD Interfacing.

Ø  A/D converter interface.

Ø  keypad interfacing

Ø  Buzzer, switches, led interfacing with micro controller Relay interfacing.

 

SECTION 5: SOFTWARES USED

Ø  A Cross compiler for compiling and linking the code written for AT89C51.

Ø  Serial communication software for downloading code to AT89C51.

Ø  Operating system: Windows XP.