RANCANG BANGUN ALAT PENGUKUR SUHU TUBUH DIGITAL SKALA CELCIUS DENGAN KELUARAN SUARA BERBASIS MIKROKONTROLER AT89S51

Abstract

The planning and realization of digital body temperature measurement device with voice output has been done. This device can be used as an alternative body temperature measurement, especially the temperature of one those who is blind. The hardware of this device consists of temperature censor LM35, Op-Amp LM35, ADC0804, sevent segment, and ISD1420. This device can work like ordinary thermometer, that measure body temperature in celcius scale. Body temperature will be read by censor, then gives output voltage that strengthened by op-amp where will be changed into digital data by ADC0804. This digital data will be processed by microcontroller and displayed in sevent segment which then will followed by voice output. This device has been realized and it can measure body temperature in celcius scale in 1oC accuracy with voice output.