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Re: [Paparazzi-devel] some problems about accelerometer of Apogee V1.00

From: Felix Ruess
Subject: Re: [Paparazzi-devel] some problems about accelerometer of Apogee V1.00
Date: Fri, 30 May 2014 18:23:01 +0200

Hi Mike,

coordinate system of the IMU sensors is with SD card and connectors on top, power connector to the right as in picture:
x-axis to the right (power connectors)
y-axis towards you (usb connector)
z-axis down

You can read the values from the Imu struct in the airborne code or switch to a telemetry mode (e.g. scaled_sensors) that will send the IMU_ACCEL message which you can then e.g. observe with the messages tool and plot with the real time plotter.

Cheers, Felix

On Thu, May 29, 2014 at 11:48 AM, Mike <address@hidden> wrote:
Hi all,
      I used the apogee V1.00 with MPU-9150, And that I want to know the
real-time results of accelerometer for x,y,z-axis; So I want to ask:
1.what coordinate system is based on when accelerometers measuring
2.Can also measure direction of it?
3.Please tell me how to see real-time measurements of acceleration, or
​​which variable(in source code) represents acceleration values in
three(x,y,z) directions?


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