Question on SN-IMU5D-LC

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Question on SN-IMU5D-LC

Postby muhzd » Fri Aug 14, 2015 3:24 pm

Hello cytron,

For the part SN-IMU5D-LC, is it a gyro plus an accelerometer? Or..rather on the gyro part, it actually measure the 'rate' of the turn instead of static angle. I am looking for a part that can measure static angle relative to flat ground.

Please clarify, thanks.
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Re: Question on SN-IMU5D-LC

Postby ober » Tue Aug 18, 2015 8:36 am

Yes, the IMU is actually the combination of gyro and accelerometer. To measure the tilt angle relative to ground in static condition (the sensor is static and not moving), you can use only the accelerometer itself. If you want to measure the angle in dynamic condition (the sensor is moving, example: quad copter, balancing robot) then you need to combine the reading from both the gyro and accelerometer with complementary filter or even Kalman Filter.
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Re: Question on SN-IMU5D-LC

Postby aswad » Thu Oct 29, 2015 1:59 pm

tumpang tanya,
atan2 function memang ada dlam compiler hitec ke?
include math.h je kan?
no need buat function dia?
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Re: Question on SN-IMU5D-LC

Postby bengchet » Thu Oct 29, 2015 3:17 pm

Hi,

Yup. Masukkan #include <math.h> je. Boleh refer link ini juga for more info, page 175. 8-)
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Re: Question on SN-IMU5D-LC

Postby aswad » Fri Oct 30, 2015 12:37 am

thank you, dah tengok tadi,
function prototype pun kne declare ke?
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Re: Question on SN-IMU5D-LC

Postby Nurul.Syuhada » Fri Oct 30, 2015 8:11 am

Hi, Just see the example in page 175. It may help. :)
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Re: Question on SN-IMU5D-LC

Postby aswad » Sun Nov 08, 2015 11:31 pm

i have use imu and complementary filter and interrupt 10ms,
and the result look good at LCD, but motor not fast response based on error.
is it have any idea?
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