Design of thermometer based on STM32 and Bluetooth

Author:

Wang Xinxin,Yun Hongli,Cui Pengxin,Wang Lijun,Niu Jinxing

Abstract

This system uses temperature sensor DS18B20, Bluetooth module HC-05, microcontroller STM32f103ZET6, LCD display with 8080 port, RTC clock and alarm circuit to achieve portable temperature measurement rapidly. It can accurately measure the temperature and the deviation is kept within 0.5 degrees. The collected temperature data and the current time are displayed on the display screen. Send the collected temperature data at regular time and receive by APP mobile phone. When users want to get temperature data remotely on their phones, press the send button on the touch screen, press the up button and send the “wendu#” command to the cell phone APP to get the temperature data collected. When the temperature is over 37∘C, the four LED lights will always be on and LCD will show “Temperature is too high, please pay attention!” This design can not only realize the function of temperature measurement simply, but also optimize the display interface, modify the system time on the display interface to achieve the humanized function, which is convenient for daily portable use.

Publisher

IOS Press

Subject

Computational Mathematics,Computer Science Applications,General Engineering

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