Facing communication Issue With Bme688.

[Ajay_0107]

Sir, I am Using I2C protocol(renesas Rl78) to communicate with Bme688 sensor to read all gas reg values but i am not getting any value from the sensor

[SterlingMinsha]

你有完整的代码吗？

[Ajay_0107]

yeah I am getting the chip id and communication is built with BME688. now I am facing the New issue that tha parametre are not changing or its not updating.

This sensor we are using in Air conditioner project to measure the AQI value so please help as fast as possible.

we cannot use your library due to controller issue.

and here we will get the gas resistance value so please provide the formula to Calculate the Aqi value.

[BSTRobin]

Hi Ajay_0107,

As you would like to get IAQ value in your project, you can download latest BSEC2.4.0.0 package from https://www.bosch-sensortec.com/software-tools/software/bme688-software, and refer the example code "BSEC2.4.0.0_Generic_Release_23012023\examples\BSEC_Integration_Examples\examples\bsec_iot_example\bsec_iot_example.c" and integration guide under "BSEC2.4.0.0_Generic_Release_23012023\integration_guide" folder.

I also upload example code which run on STM32 for your reference, hope it will be helpful for you. Enable the following macro definition in user_define.h.

#if defined(USE_BME68X)
//#define BME68X_OUTPUT_GAS_ESTIMATE
#define BME68X_OUTPUT_GAS_IAQ
#endif