Initalisation

[Nick-C130]

Hi, im using this as a part of a rocket datalogger and as such need as few sensors as possible. i have forgone a magnetometer under the understanding that only accelerometers and gryos are needed. Is there a way to use just the accelerometer data to get initial pitch and yaw. I understand that roll cannot be gathered from just accelerometer data and am fine with that. I dont mind how the axis are oriented so long as up is up and i have 2 sideways directions if that makes sense. Thanks

[aster94]

Hello, Correct, at least you need accelerometer and gyroscope. Only the accelerometer won't work with this library. Anyway the change in weight is really minimal and you will get far away better result with data from both sensors combined Il Mer 2 Ago 2023, 03:08 Nick-C130 ***@***.***> ha scritto:

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Hi, im using this as a part of a rocket datalogger and as such need as few sensors as possible. i have forgone a magnetometer under the understanding that only accelerometers and gryos are needed. Is there a way to use just the accelerometer data to get initial pitch and yaw. I understand that roll cannot be gathered from just accelerometer data and am fine with that. I dont mind how the axis are oriented so long as up is up and i have 2 sideways directions if that makes sense. Thanks — Reply to this email directly, view it on GitHub <#14>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFBUBTW5SYTPUNHLTSH5GI3XTGR7PANCNFSM6AAAAAA3AQ4B7M> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[Nick-C130]

Hi, thanks for the reply, I have accelerometers and gyros just not a magnetometer. The AHRS works fine however always initialises at pure vertical, I'm hoping to use the accelerometers to get its orientation before flight if that makes sense.
Thanks

[aster94]

I don't have experience with high accelerations. I will be very curious about your result with the rocket, please once you have data and a video feel free to share Il Mer 2 Ago 2023, 07:53 Nick-C130 ***@***.***> ha scritto:

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Hi, thanks for the reply, I have accelerometers and gyros just not a magnetometer. The AHRS works fine however always initialises at pure vertical, I'm hoping to use the accelerometers to get its orientation before flight if that makes sense. Thanks — Reply to this email directly, view it on GitHub <#14 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFBUBTWI7NIAIOIJSRCKQA3XTHTMLANCNFSM6AAAAAA3AQ4B7M> . You are receiving this because you commented.Message ID: ***@***.***>

[Nick-C130]

Have you got any idea how to initialise the orientation without a magnetometer?

[aster94]

Yes, see the examples Il Mer 2 Ago 2023, 08:21 Nick-C130 ***@***.***> ha scritto:

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Have you got any idea how to initialise the orientation without a magnetometer? — Reply to this email directly, view it on GitHub <#14 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFBUBTXYCVPBWUDBECKITXLXTHWXPANCNFSM6AAAAAA3AQ4B7M> . You are receiving this because you commented.Message ID: ***@***.***>