Hello Bosch Community,
I am currently working on a project with the BME688 sensor, and I’m implementing custom code to retrieve sensor data without using the provided library. While I have successfully measured temperature, pressure, and humidity, I am encountering significant challenges with gas data collection. Here are the specific issues I’m facing:
Constant Gas Resistance Values:
The gas resistance readings remain static and do not change dynamically, even when exposed to varying environments.Unstable Heater Control:
I am following the datasheet instructions for configuring the gas sensor’s heater settings, including temperature and duration. However, the heater appears unstable, and I suspect that the settings may not be properly applied.Heater Profiling:
I am not entirely sure if I am correctly setting up the heater profile parameters (target temperature and duration) or if there are additional considerations for enabling stable operation.Status Bits and Measurement Timing:
I’ve reviewed themeas_status [0]register, but I am unclear about how to interpret its status bits properly to ensure the TPHG measurement cycle is synchronized.Dynamic Response:
Even after performing the necessary calibration steps, the gas resistance does not seem to respond to gas variations as expected.
I would greatly appreciate detailed guidance on the following:
The correct process for configuring the heater settings for gas measurements.
Tips for interpreting the status bits to ensure accurate data collection.
Any troubleshooting steps to address constant gas resistance readings.
Insights into ensuring the dynamic behavior of gas resistance values.
If any example configurations or test scenarios (other than using the library) are available, that would be incredibly helpful.
Thank you for your support!
Best regards,
Kamal