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Hi woessmich, You can override that delay function by passing your custom idle task in the  begin function. Note that this is for all the internal delays, even the ones that a span several milliseconds. The format is defined in the BME680 API.  Below is a snippet for your reference. void myDelayMs(uint32_t periodMs) { // Go to sleep if periodMs is sufficiently long } void setup(void) { // Other stuff iaqSensor.begin(BME680_I2C_ADDR_PRIMARY, Wire, myDelayMs); //Other stuff }    ... View more

Hi chrfriese, Yes the outputs right now to the Serial terminal are in LSB. Depending on your configuration of the sensor's range settings, you will have to scale it accordingly.  For example, the accelerometer values need to be mutliplied by (Acc_range / 32768), where Acc_range is 2, 4, 8, 16; the resultant being in G. The gyroscope values need to be mutliplied by (Gyr_range / 32768), where Gyr_range is 125, 250, 500, 1000, 2000   ... View more

Hi Dmitry, I was able to get it work with an experimental branch of the BSEC Arduino library. ets Jun 8 2016 00:22:57 rst:0x5 (DEEPSLEEP_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:1044 load:0x40078000,len:8896 load:0x40080400,len:5816 entry 0x400806ac 000959611: BSEC version 1.4.7.4 000959612: setState: 04 07 04 01 3d 00 00 00 00 00 00 00 73 00 00 00 2d 00 01 01 a9 b4 ad 40 de b8 ad 40 98 28 aa 40 67 26 aa 40 00 00 00 00 2c 01 25 25 00 00 40 40 00 00 40 40 00 00 03 00 17 a8 5f 3f 14 0c 00 02 01 69 1d 00 43 f9 f1 a7 42 10 00 03 01 da 20 97 40 48 81 d3 41 a1 e6 ef 41 16 00 05 01 40 ac 9c d3 de 00 00 00 00 00 00 00 7c fc 8c 52 01 01 0c 00 09 01 40 ac 9c d3 de 00 00 00 08 00 0a 01 17 9a d3 41 00 00 00 00 d9 4c 00 00 000959642: Successfully set state from 957044 000959646: Sensor init done 000959890: Temperature raw 26.46 compensated 26.39 000959891: Humidity raw 29.84 compensated 29.96 000959891: Pressure 97.78 kPa 000959891: IAQ 127 accuracy 3 000959893: Static IAQ 83 accuracy 3 000959896: Gas resistance 53.03 kOhm 000959900: getState: 04 07 04 01 3d 00 00 00 00 00 00 00 73 00 00 00 2d 00 01 01 a5 b4 ad 40 de b8 ad 40 9c 28 aa 40 67 26 aa 40 00 00 00 00 2c 01 26 26 00 00 40 40 00 00 40 40 00 00 03 00 17 a8 5f 3f 14 0c 00 02 01 b9 3a fe 42 12 cc a6 42 10 00 03 01 5a 25 97 40 03 83 d3 41 03 d9 ef 41 16 00 05 01 00 84 c8 7d df 00 00 00 00 00 00 00 7c fc 8c 52 01 01 0c 00 09 01 00 84 c8 7d df 00 00 00 08 00 0a 01 cf 9c d3 41 00 00 00 00 f7 ca 00 00 000959938: Saved state to RTC memory at 959899 000959942: Deep sleep for 2340 ms. BSEC next call at 962648 ms.  You can find the sketch in the experimental branch here. The BSEC outputs are configured for LP so as to see the calibration and data changes sooner.  ... View more

Hi mariswamy, It is recommended to complete it register address and data write in a single transaction. Assuming that setting the last parameter of the function nrf_drv_twi_tx to 1 allows for a single write sequence, the second call of the function nrf_drv_twi_tx to write the data should have the last parameter set to 0 to complete the transaction. If this doesn't work, then you may have to create a single array of len+1 and copy the register address and data accordingly.  ... View more

Hi louyuminghamn, Our sister company Bosch Connected Devices and Solutions develops and supports the XDK. You can find their support forum here. ... View more