Hitechnic Compass Sensor Question

Discussion specific to the intelligent brick, sensors, motors, and more.
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porty6600
Posts: 14
Joined: 08 Jan 2012, 01:18

Hitechnic Compass Sensor Question

Post by porty6600 »

Does anyone know if it matters that the compass sensor is level? I wasn't sure.


porty6600
mattallen37
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Re: Hitechnic Compass Sensor Question

Post by mattallen37 »

Yes, it is critical to the accuracy of the readings.
Matt
http://mattallen37.wordpress.com/

I'm all for gun control... that's why I use both hands when shooting ;)
porty6600
Posts: 14
Joined: 08 Jan 2012, 01:18

Re: Hitechnic Compass Sensor Question

Post by porty6600 »

Thanks, I got it leveled. Is there anything else I need to know about this sensor?

porty6600
mattallen37
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Joined: 02 Oct 2010, 02:19
Location: Michigan USA
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Re: Hitechnic Compass Sensor Question

Post by mattallen37 »

Well, it's a magnetometer, so any magnetic field will effect it's readings. That means that motors, batteries, wires, other sensors, and any magnetic metal (iron/steel primarily) could have an effect on the accuracy of the returned heading.

For an NXT robot, it's recommended to keep the compass at least 6 inches away from anything electrical. Often the easiest way to do this is by mounting it above the rest of the robot.
Matt
http://mattallen37.wordpress.com/

I'm all for gun control... that's why I use both hands when shooting ;)
porty6600
Posts: 14
Joined: 08 Jan 2012, 01:18

Re: Hitechnic Compass Sensor Question

Post by porty6600 »

mattallen37 wrote:Well, it's a magnetometer, so any magnetic field will effect it's readings. That means that motors, batteries, wires, other sensors, and any magnetic metal (iron/steel primarily) could have an effect on the accuracy of the returned heading.

For an NXT robot, it's recommended to keep the compass at least 6 inches away from anything electrical. Often the easiest way to do this is by mounting it above the rest of the robot.
Wow, thats a bummer! It will be difficult to mount it that high.

porty6600
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