Abstract:
This research is aimed to observe the principle procedure of Temperature Logger Data Sensor
based on Atmega 8535 Microcontroller with Personal Computer Display. This research uses method for designing
equipment simulation for detecting and recording temperature in a room or things for every second. Therefore, the
function of Temperature Logger Data Sensor is to measure and display the temperature continuously through PC
monitor. The type of temperature censor used is DS1621 which can measure temperature from 0°C up to 50°C. The
data is processed in Atmega 8535 microcontroller, and then the result is sent to PC monitor through RS232 which
display data in table. Visual Basic 6.0 is used to create database and display data in monitor. The result of the study
shows that the Temperature Data Logger Sensor can be used to measure temperature of rooms or things which
fluctuation range of 0,5°
C and the error of 2,03%. The Temperature Data Logger Sensor based on the Atmega 8535
microcontroller works according to the procedure
