Abstract
Based on STM32 MCU and HC-05 module, a wireless temperature and humidity detection system is designed. In this system, STM32 is taken as the control core, the digital temperature and humidity sensor AM2303 with low power consumption and fast response is used to collect temperature and humidity signals, and bluetooth technology is used to transmit the detected environmental information, thus completing the remote communication with the upper computer. The problem of complicated wiring of traditional wired monitoring system is solved. Through Bluetooth module, the communication between STM32 single chip microcomputer and host computer can realize the real-time detection of environmental temperature and humidity. When there is danger in the room, the mobile phone or work computer can receive warning signals in time. The experimental results show that the system has the advantages of good real-time, high data transmission reliability and good intelligence, Meanwhile, the cable is saved and the cost is reduced.
Highlights
In daily life, temperature and humidity are two very important physical parameters, which are closely related to people's health, and closely related to scientific research, garden technology, warehouse management and computer room management
The indoor environmental monitoring system introduced in this paper adopts Bluetooth communication to build a network model, with the single chip microcomputer STM32 as the core controller, and the monitoring terminal adopts AM2303 temperature and humidity sensor to realize indoor environmental information collection
Wireless data transmission uses Bluetooth module HC-05 to upload to mobile phones or workstations and other monitoring equipment to realize remote monitoring
Summary
Temperature and humidity are two very important physical parameters, which are closely related to people's health, and closely related to scientific research, garden technology, warehouse management and computer room management. Wireless Bluetooth technology to indoor management system, monitor all kinds of indoor environmental information in real time, judge indoor abnormal hidden dangers in time, and assist indoor managers to deal with them. It has certain innovation and practical significance to minimize the damage caused by environmental factors to indoor equipment or personnel and reduce direct economic losses. The main controller is STM32 with low power consumption and strong computing ability, the. Bluetooth module is HC-05, the sensor is AM2303 with low power consumption, fast response and strong stability, and the display module is LCD screen
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