MPU9250 Question
AbhishekJoshi opened this issue · 6 comments
AbhishekJoshi commented
Quick question for you, as the datasheet is not clear, and I couldn't find obvious hints.
If I powercycle an MPU9250, will the offset/registers be set to "default"/uncalibrated values?
Do I need to recalibrate my MPU everytime I turn it on?
I'm working on a personal project, I'm trying to determine if I need to recalibrate my MPU every cold boot.
SUPER SORRY if I'm polluting your issues. I know this is meant for real issues, but it seems you're one of the better experts on MPU9250!
Thanks!
kriswiner commented
The memory in the MPU9250 is volatile, so it will return to the default
contents (i.e., 0) on power on. You can store your calibration in arrays in
your program or on-board flash, etc.
…On Mon, Jun 7, 2021 at 12:08 AM Abhishek Joshi ***@***.***> wrote:
@kriswiner <https://github.com/kriswiner>
Quick question for you, as the datasheet is not clear, and I couldn't find
obvious hints.
If I powercycle an MPU9250, will the offset/registers be set to
"default"/uncalibrated values?
Do I need to recalibrate my MPU everytime I turn it on?
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AbhishekJoshi commented
Hi. Thanks for your response.
From your experience, how often are these MPU's dead from factory on arrival?
I'm working on a project, and sometimes gx is not moving, and other times its gz, or gy.
kriswiner commented
Depends where you buy from. Reputable sources, never, from China about half
the time...
…On Mon, Jun 7, 2021 at 2:55 PM Abhishek Joshi ***@***.***> wrote:
Hi. Thanks for your response.
From your experience, how often are these MPU's dead from factory on
arrival?
https://www.banggood.com/5Pcs-MPU-9250-GY-9250-9-Axis-Sensor-Module-I2C-SPI-Communication-Board-For-Arduino-p-1233671.html
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kriswiner commented
nCS needs to be pulled HIGH to work IIRC...
On Mon, Jun 7, 2021 at 3:06 PM Tlera Corporation ***@***.***>
wrote:
… Depends where you buy from. Reputable sources, never, from China about
half the time...
On Mon, Jun 7, 2021 at 2:55 PM Abhishek Joshi ***@***.***>
wrote:
> Hi. Thanks for your response.
>
> From your experience, how often are these MPU's dead from factory on
> arrival?
>
>
> https://www.banggood.com/5Pcs-MPU-9250-GY-9250-9-Axis-Sensor-Module-I2C-SPI-Communication-Board-For-Arduino-p-1233671.html
>
> —
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AbhishekJoshi commented
Last one! Do you have any reputable sources you can recommend?
Thanks!
…On Mon, Jun 7, 2021 at 6:06 PM Kris Winer ***@***.***> wrote:
Depends where you buy from. Reputable sources, never, from China about half
the time...
On Mon, Jun 7, 2021 at 2:55 PM Abhishek Joshi ***@***.***>
wrote:
> Hi. Thanks for your response.
>
> From your experience, how often are these MPU's dead from factory on
> arrival?
>
>
>
https://www.banggood.com/5Pcs-MPU-9250-GY-9250-9-Axis-Sensor-Module-I2C-SPI-Communication-Board-For-Arduino-p-1233671.html
>
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kriswiner commented
Maybe look at Sparkfun...I also have a few
<https://www.tindie.com/products/onehorse/wearable-mpu9250-nano-board/>.
On Mon, Jun 7, 2021 at 3:07 PM Abhishek Joshi ***@***.***>
wrote:
… Last one! Do you have any reputable sources you can recommend?
Thanks!
On Mon, Jun 7, 2021 at 6:06 PM Kris Winer ***@***.***> wrote:
> Depends where you buy from. Reputable sources, never, from China about
half
> the time...
>
> On Mon, Jun 7, 2021 at 2:55 PM Abhishek Joshi ***@***.***>
> wrote:
>
> > Hi. Thanks for your response.
> >
> > From your experience, how often are these MPU's dead from factory on
> > arrival?
> >
> >
> >
>
https://www.banggood.com/5Pcs-MPU-9250-GY-9250-9-Axis-Sensor-Module-I2C-SPI-Communication-Board-For-Arduino-p-1233671.html
> >
> > —
> > You are receiving this because you were mentioned.
> > Reply to this email directly, view it on GitHub
> > <
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> > <
>
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