MPU6050 to nRF51 DK

RE: MPU6050 to nRF51 DK

dkwill — Thu, 02 Jul 2015 00:04:11 GMT

Hi - Any update on an example? Thanks

RE: MPU6050 to nRF51 DK

dkwill — Thu, 09 Apr 2015 15:05:17 GMT

Fantastic! Thank you! I noticed InvenSense (manufacture of the MPU6050) has posted code to extract data from the DMP (Digital Motion Processor) but it is only for the MSP430. Leverage to either the InvenSense or Rowberg libraries for the nrf51 series would be great!

RE: MPU6050 to nRF51 DK

Stian Røed Hafskjold — Thu, 09 Apr 2015 13:30:28 GMT

Alright! Thank you for the suggestion. It is indeed many questions about MPU6050, so we should definitely have a working example for this. I will bring that further to the SDK team:)

RE: MPU6050 to nRF51 DK

dkwill — Sun, 15 Mar 2015 00:04:35 GMT

Thanks Stian. After giving this some thought, because my goal is to get up and running as quick as possible, I'm going to try to leverage the 4k lines of code that Rowberg has written (referenced above on Github). While this may take me away from the nRF chip, based on what I'm finding, I think there would be considerable interest from the developer community in a forking of Rowberg to the nRF 51 series so I just wanted to pass this along. While the learning is fun and I obviously have a long way to go, I also need to leverage what experienced developers have done if I'm going to get anywhere -- I'm already too old for this as it is :)

RE: MPU6050 to nRF51 DK

Stian Røed Hafskjold — Tue, 10 Mar 2015 10:35:21 GMT

So, what exactly is not working? Does the mpu6050_verify_product_id(); return with anything meaningful? Is the TWI up and running? Are you able to see the bits on the TWI bus using a logic analyzer? What have you done already to debug the code? And what is the conclusion so far? Are you using a development kit, or custom hardware? Have you checked that the pinout is correct for your hardware setup?

The software TWI was created for the first nrf51822 chip revision, since there was some hardware issues. This was corrected in the subsequent releases. So you should be fine using the TWI HW.