Question about connect arduino primo to BMI160 using SPI..

RE: Question about connect arduino primo to BMI160 using SPI..

TTN — Mon, 22 Jan 2018 10:27:36 GMT

Yes,this case just check the concept is workable. Now i'm using nrf52 DK to productize our conecpt, so this problem may be solved in the future.

RE: Question about connect arduino primo to BMI160 using SPI..

Bjørn Kvaale — Fri, 19 Jan 2018 13:15:19 GMT

Does that mean you can get it to work sometimes, but not all the time?

RE: Question about connect arduino primo to BMI160 using SPI..

TTN — Thu, 18 Jan 2018 11:52:13 GMT

The connection is right, the problem seems the mcu sometimes do not initialize well, so can't connect to the sensor.

RE: Question about connect arduino primo to BMI160 using SPI..

Bjørn Kvaale — Mon, 18 Dec 2017 11:46:14 GMT

Did you figure out the problem? Does the SPI communication work with the BMI160 IMU?

RE: Question about connect arduino primo to BMI160 using SPI..

TTN — Wed, 13 Dec 2017 07:10:26 GMT

thanks for your reply. I try to do some example to make sure my realization on SPI is correct.

RE: Question about connect arduino primo to BMI160 using SPI..

Bjørn Kvaale — Tue, 12 Dec 2017 13:06:37 GMT

Hi TTN, I am pretty sure you have connected the wires correctly (see this link here, see Section Wiring, SPI Mode). I'm guessing you have already taken a look at the Arduino SPI library, but it might be a good idea to double check (see this link). On the bottom of that page, two different examples with code are given for a barometric pressure sensor & digital potentiometer control.

Comparing your code to the barometric pressure sensor, I can see there are a few differences. Let me test your code & the example code on my Primo first. I will get back to you soon.