JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

2026-09-06T07:57:24Z

Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

Neue Seite

__NOINDEX__
'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The BME68X environmental sensor measures temperature, humidity, barometric pressure and gases via I2C or SPI. It is suitable for smart home, mobile applications and wearables.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL24244 WSAL24244 – BME68X Environmental Sensor, Supports Temperature / Humidity / Barometric Pressure / Gas Detection, optional AI function]
* [https://shop.jw-tech.eu/p/WSAL24245 WSAL24245 – BME68X Environmental Sensor, Supports Temperature / Humidity / Barometric Pressure / Gas Detection, optional AI function]

== Technical overview ==
* Four-in-one sensor: temperature, humidity, barometric pressure and gas resistance (VOC).
* Communication over I2C (default) or SPI; I2C address configurable via ADDR pin (0x77 high, 0x76 low).
* Onboard voltage translator supports 3.3 V / 5 V levels.
* BME680/BME688 include a mini MOX gas sensor; IAQ calculation requires the non-open-source Bosch BSEC library with licensing terms.
* Connection examples for Raspberry Pi (I2C/SPI), Arduino, ESP32 and Raspberry Pi Pico are included in the demo package.
* Raspberry Pi: enable I2C/SPI drivers via raspi-config, reboot, then verify address with i2cdetect -y 1.
* C demo: set USEIIC macro to 1 for I2C, 0 for SPI; compile with make.
* Python demo is I2C-only; install the bme680 library via pip3.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
sudo raspi-config
sudo reboot
lsmod
sudo apt-get install i2c-tools
i2cdetect -y 1
wget https://files.waveshare.com/upload/4/49/BME68X_Environmental_Sensor_code.zip
unzip BME68X_Environmental_Sensor_code.zip
sudo chmod -R 777 BME68X_Environmental_Sensor_code
cd BME68X_Environmental_Sensor_code/RaspberryPi/C
nano main.c
sudo make clean
sudo make
sudo ./bme68x
sudo pip3 install bme680
cd BME68X_Environmental_Sensor_code/RaspberryPi/Python/examples
sudo python3 read-all.py
</syntaxhighlight>

== Notes and version constraints ==
* The BSEC library is proprietary; usage requires reviewing Bosch's licensing terms.
* I2C address depends on the state of the ADDR pin (NC = 0x77, GND = 0x76); avoid address conflicts when using multiple devices.
* Demo files must be downloaded and unzipped; paths may vary by system.
* SPI connection on Raspberry Pi uses pin 27 (wiringPi) for CS; verify exact wiring before soldering.
* Gas measurement returns only a total VOC value; distinguishing individual gases requires additional development (AI function optional).

== Source and revision record ==
* [https://www.waveshare.com/wiki/BME688_Environmental_Sensor BME68X Environmental Sensor - Waveshare Wiki]
* Source revision: 110850
* Captured: 2026-09-04T04:03:02+00:00
* SHA-256: <code>6c869a7d5c0cf0f5035c033e79f26ae43560a906e09da73cac350943b14415cb</code>

WSAL24244 – BME688 Environmental Sensor/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex