BME690 – сензор за влажност, налягане, температура, надморска височина, газ – Air Quality

Модулът е изграден със сензор BOSH BME690 – datasheet. Измерва налягане, температура, влажност, надморска височина (Altimeter) и VOCs газове (органични летливи съединения).

Комплектът съдържа:

• Платка сензор – 1бр.
• Конектор мъжки 1 х 5 извода – 1бр.
• Конектор женски 1 х 5 извода – 1бр.

Характеристики:

• Размери платка: 19mm x 19mm
• Захранване: 3V – 5V
• Работно напрежение интерфейс: 3V – 5V
• Влажност: 0% – 100% RH, резолюция до 0,008%, точност до ±3%
• Налягане: 300 hPa – 1100 hPa, точност до ±0,05 hPa, резолюция до 0,18 Pa
• Надморска височина: до 9000m, точност до ±1m и резолюция до 0,25m
• Температура: -40°C до +85°C, точност до ±0,5°C при работа в диапазон от 0°C до 65°C, резолюция до 0,01°C
• Газ: отчита летливи органични съединения (VOCs), летливи сяросъдържащи съединения (VSCs), въглероден оксид и водород. Може да използва AI-обработка за оценка на „Indoors air quality index“ (IAQ) и др. Намира приложение при измерване качеството на въздуха – Air Quality
• Интерфейс: I2C, с избор от адреси 0x76 (по подразбиране) или 0x77
• Qwiic/STEMMA QT конектор
• Подобрения спрямо BME688: по-ниска консумация, по-голям темературен диапазон, по-голяма устойчивост при условия с висока влажност/кондензация и др.

​Допълнителна информация:

• BME690 4-in-1 Air Quality Breakout (Gas, Temperature, Pressure, Humidity). Сайт на производителя
• Python Library. Библиотека за Raspberry Pi
• C++/MicroPython libraries. Библиотеки за Raspberry Pi Pico
• Bosh BME690_SensorAPI (Bosch C library)
• Bosch BME690 software
• BME690 datasheet
• Схема (pdf)

 

 

Description EN:

This super-smart Bosch sensor measures temperature, pressure and humidity precisely. It also has an AI-enhanced gas scanner function.

Like previous sensors in the BME6XX series, this high quality sensor can be used to monitor every aspect of your environment, taking high precision measurements of temperature, pressure and humidity.

It also features a gas scanner function with extended measurements, which will react to changes in volatile organic compounds (VOCs), volatile sulfur compounds (VSCs) and the presence of carbon monoxide and hydrogen to give a general measure of indoor or outdoor air quality. With Bosch’s software, you can analyse the gas readings further and train the algorithms to make inferences about specific air quality indicators, including the likelihood of bacteria growth and the presence of other organic contaminants. Improvements

Improvements from the previous BME688 sensor include lower power consumption and increased robustness in humid environments.

Want to get an idea of whether there’s adequate ventilation in your bedroom, your workshop, or workplace? Set up a BME690 on a Raspberry Pi Zero W or Pico W and have it log sensor readings to a file or post them into your favourite home automation software or a web service like adafruit.io.

Features

• Bosch BME690 4-in-1 environmental sensor with AI (datasheet)
• I2C interface, with address select via ADDR cuttable trace (0x76 or 0x77)
• Qwiic/STEMMA QT connector
• 3.3V or 5V compatible
• Reverse polarity protection (on Breakout Garden connector)
• Raspberry Pi-compatible pinout (pins 1, 3, 5, 7, 9)
• Compatible with Raspberry Pi (Python library)
• Compatible with Raspberry Pi Pico/RP2040/RP2350 (C++/MicroPython libraries)

Kit includes

• BME690 breakout
• 1×5 pin header
• 1×5 right angle socket header

We’ve designed this breakout board so that you can solder on the piece of right angle socket header and pop it straight onto the bottom left 5 pins on your Raspberry Pi’s GPIO header (pins 1, 3, 5, 7, 9). The right angle header also has the advantage of positioning the breakout away from the Pi’s CPU so as to minimise radiated heat.

Notes

• The trace on the back of the board marked ADDR can be cut to change the I2C address from the default of 0x76 to 0x77, meaning that you can use up to two sensors at the same time
• The BME280, BMP280 and BME6XX breakouts all share the same I2C addresses, so if you’re using two together then you’ll need to change the I2C address on one of them using the solder bridge or cuttable traces.
• Dimensions: approx 19mm x 19mm x 5mm (L x W x H, including connector)