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Help in sensor selection
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Help in sensor selection

by alakabie on Mon Jun 22, 2015 5:18 am

Hi
I have a project to control wheeled-robot by using head tilt, in four direction, I need to use accelerometer to do this job, i need very sensitive and accurate sensor to detect any change in head orientation. really i don't have good experience in accelerometer and which one should i use for this project, I am use EFM32 ARM microcontroller, can any one help me in the best choice for this project. digital or analog, 3 axis or less, with gyro and magnetometer or alone, with which sensitivity and accuracy rang.
Thank you very much for helping me

alakabie
 
Posts: 5
Joined: Tue Jun 16, 2015 5:08 am

Re: Help in sensor selection

by adafruit_support_bill on Mon Jun 22, 2015 6:20 am

You can do tilt with a 3-axis accelerometer. For your application, something like this one would work: https://www.adafruit.com/products/2019
I'd use the lowest (2G) range for the best resolution.

Adding a magnetometer and Gyro would give you rotation as well as tilt. This Absolute Orientation IMU has all the hard sensor fusion math built in.
https://www.adafruit.com/products/2472

adafruit_support_bill
 
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Joined: Sat Feb 07, 2009 10:11 am

Re: Help in sensor selection

by alakabie on Mon Jun 22, 2015 7:21 am

Thank you very much for your help and fast reply

alakabie
 
Posts: 5
Joined: Tue Jun 16, 2015 5:08 am

Please be positive and constructive with your questions and comments.