Research of the parameters of the modern climate control system in office premises

: pp. 125 - 136
Lviv Polytechnic National University, department of computerized automation systems
Lviv Polytechnic National University

Measuring and controlling the temperature of the environment in the room is one of the most important measurements that a person makes every day. Temperature measurements are used to control objects where it is important to constantly maintain a certain temperature regime, or where sharp temperature changes can affect the efficiency of the final result of the operation of this object. Remote control of these indicators will allow the management to quickly intervene in the work of the enterprise to eliminate problems that may lead to a loss of the object's productivity.

This article considers the implementation of a device for measuring temperature based on the STM32F746ZGTx microcontroller. The HTU21D sensor is used to receive temperature The FreeRtos operating system will also be used to implement multitasking of the device.

data, which can receive data on both the ambient temperature and its humidity. The characteristics of the sensor are as follows: temperature measurement range from -40 °C to +125 °C; relative humidity measurement range 0-100%, temperature error Δ0.4 °C; humidity error Δ3%; supply voltage from 1.5 to 3.6V; I²C communication protocol, up to 400 kHz.

An LCD display is used to display data to the user, which also uses the I²C communication protocol and a 5V power supply. The FreeRtos operating system will also be used to implement multitasking of the device.

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