
Ð”Ð°Ð½Ð½Ð°Ñ Ð²Ñ‹Ð¿ÑƒÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸Ñ„Ð¸ÐºÐ°Ñ†Ð¸Ð¾Ð½Ð½Ð°Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ð° поÑвÑщена разработке микроконтроллерного датчика параметров окружающей Ñреды на оÑнове микроÑхемы BME680, измерÑющего такие климатичеÑкие показатели как температура, отноÑÐ¸Ñ‚ÐµÐ»ÑŒÐ½Ð°Ñ Ð²Ð»Ð°Ð¶Ð½Ð¾Ñть, атмоÑферное давление и Ñодержание летучих органичеÑких Ñоединений в воздухе. Определена облаÑть Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñпроектированного уÑтройÑтва: датчик может иÑпользоватьÑÑ Ð´Ð»Ñ Ð¸Ð·Ð¼ÐµÑ€ÐµÐ½Ð¸Ñ Ð¼Ð¸ÐºÑ€Ð¾ÐºÐ»Ð¸Ð¼Ð°Ñ‚Ð° в производÑтвенных помещениÑÑ…, в лабораториÑÑ… выÑокоточных измерений, в ÑоÑтаве ÑиÑтемы «Умный дом» и др. Изучены количеÑтвенные Ð·Ð½Ð°Ñ‡ÐµÐ½Ð¸Ñ Ð¿Ð°Ñ€Ð°Ð¼ÐµÑ‚Ñ€Ð¾Ð² окружающей Ñреды Ð´Ð»Ñ ÐºÐ¾Ð½Ñ‚Ñ€Ð¾Ð»Ñ ÑƒÑловий труда. СоÑтавлена ÑÑ‚Ñ€ÑƒÐºÑ‚ÑƒÑ€Ð½Ð°Ñ Ñхема и подробно опиÑаны оÑновные оÑобенноÑти Ñлементов: четыре ÑенÑора микроÑхемы ВМЕ680, где оÑобый интереÑен про-Ñвлен к оценке качеÑтва воздуха; режимы работы микроконтроллера STM32L431CCT6 Ñо Ñверхмалым Ñнергопотреблением; архитектура Ð¼Ð¾Ð´ÑƒÐ»Ñ Ð±ÐµÑпроводной ÑвÑзи по технологии LoRa SX1276. РаÑÑмотрен принцип дейÑÑ‚Ð²Ð¸Ñ Ñетевого поÑледовательного интерфейÑа обмена данными I2C. Разработка принципиальной Ñхемы оÑущеÑтвлÑлаÑÑŒ в веб-Ñреде EsyaEDA. Там же вручную выполнена траÑÑировка печатной платы. Разведенный датчик готов к изготовлению и пайке отдельных Ñлементов. Проведен анализ полученных результатов.
This final qualification work is devoted to the development of a micro-controller environmental sensor based on the BME680 chip, which measures such climatic indicators as temperature, relative humidity, atmospheric pressure, and the content of volatile organic compounds in the air. The scope of the designed device was determined: the sensor can be used to measure microclimate in industrial prem-ises, in high-precision measurement laboratories, as part of the Smart Home sys-tem, etc. Quantitative values of environmental parameters for monitoring working conditions were studied. A structural diagram is compiled and the main features of the elements are described in detail: four sensors of the BME680 microcircuit, where particular interest is shown in assessing air quality; STM32L431CCT6 mi-crocontroller operating modes with ultra-low power consumption; LoRa SX1276 wireless module architecture. The principle of operation of the network serial inter-face of the I2C data exchange is considered. The concept was developed in the EsyaEDA web environment. A PCB trace was also manually made there. The dilut-ed sensor is ready for the manufacture and soldering of individual elements. The analysis of the results obtained.
даÑÑик паÑамеÑÑов окÑÑжаÑÑей ÑÑедÑ, printed circuit board, микÑоконÑÑÐ¾Ð»Ð»ÐµÑ stm32l431cct6, sx1276, sensor development, пеÑаÑÐ½Ð°Ñ Ð¿Ð»Ð°Ñа, principal diagram, ÑÑÑÑкÑÑÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°, пÑинÑипиалÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°, i2c, easyaeda, microcontroller stm32l431cct6, esyaeda, structural diagram, bme680, ÑазÑабоÑка даÑÑика, environmental sensor, lora
даÑÑик паÑамеÑÑов окÑÑжаÑÑей ÑÑедÑ, printed circuit board, микÑоконÑÑÐ¾Ð»Ð»ÐµÑ stm32l431cct6, sx1276, sensor development, пеÑаÑÐ½Ð°Ñ Ð¿Ð»Ð°Ñа, principal diagram, ÑÑÑÑкÑÑÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°, пÑинÑипиалÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°, i2c, easyaeda, microcontroller stm32l431cct6, esyaeda, structural diagram, bme680, ÑазÑабоÑка даÑÑика, environmental sensor, lora
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