About franciskumar200

Hi,   I am using BME688 with our MCU (Cortex-M33) and have limited space. I have interfaced the sensor via I2C and am able to read the raw values and able to display the Temp, Humidity, Pressure and Gas resistance.   Now my intention is why the gas resistance value is showing always constant?   And how can I convert the GAS resistance value to VOC or CO2/other gases in ppm conversion?   And I need the support to install your BEC Algorithm and libraries in our Cortex-M33 platform to cross compile the overall stack. share any doucments to link your libs.   Regards, Kumar ... View more

Hi Robin, I am able to read the registers from i2c using in our platform. And the below raw values are gettign and converted as per temperature formula. Able to read the 0x22, 0x23, 0x24 temp & 0x25, 0x26 hum registers for calculating both. But i am not getting the room temperature value. Please suggest us. Temperature:- temp_msb = 127 //0x22 temp_lsb = 227 // 0x23 temp_xlsb = 96 // 0x24 temp_raw = 523830 calc_temp = 153 Humidity:- hum_msb = 74   // 0x25 hum_lsb = 140   // 0x26 hum_raw = 19084  calc_hum = 245 Regards, Kumar ... View more

Hi Robin, Yes there is depdnency to port it in our BLE platform due to space constraint. Which is 352Kb flash + 32Kb RAM. I will try to load the BSE algorithm. If not fit, i will go with RAW data reading and sending the same to our mobile app will apply the formulas. Is it make sense? Is there any challenge? please suggest us. Regards, Kumar   ... View more

Hi Robin, Thanks for your response. Instead of Bosch software and integrate all your driver in our platform, is there any logic can be done using I2C registers to read the RAW values. After gettign the RAW values from application end will apply the formula logic.  Will this give any imapct? and i am using the SoC have limited flash memeory to fit your software in our Cortex-M33. Please share some small logic to read the raw values. Regards, Kumar        ... View more