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Design of temperature control system based on stm32
Abstract: Temperature monitoring is mainly used in greenhouses
and places that need to monitor the temperature. The main purpose
is to be able to sense the temperature of the detected area
and control the temperature. The design takes STM32F103 as the
control core of the system, USES some peripheral modules of
STM32F103, USES DS18B20 to measure the temperature, USES resistance
heating wire as the heating device, USES OLED for display, USES
PID position test control algorithm, outputs PWM for heating the
heating wire, and stabilates at the preset value of temperature.
The preset value is transmitted to STM32F103 from the mobile
phone through serial port communication through the slave of
Bluetooth module to realize effective control of temperature. The
whole hardware system achieves coordinated and orderly working
state through processor's control. In terms of software, each
corresponding function module is programmed. Through repeated
verification, the temperature control system has the characteristics
of simple operation, high precision, reliable operation and high
cost performance.
Keywords: DS18B20;temperature control; STM32F103;PWM;PID
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