30-10-2012, 11:54 AM
MICROCONTROLLER BASED TEMPERATURE METER using AT89c51
METER using AT89c51.doc (Size: 37.5 KB / Downloads: 32)
ABSTRACT
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.