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Found 2 results

  1. varun332

    Pmod CMPS2

    varun332 posted a question in Add-on Boards

    Hi, I am working with the Pmod CMPS2 and an Arduino Uno to get an accurate reading of the direction a user is facing for a personal project. I am having trouble writing the code since the code on the website on Reference Materials is giving me a lot of errors. Is there any other code I can try?
  2. gruberth96
    Hello, I am using the digilent CMPS2 module which uses the Memsic MMC34160PJ magnetometer. In the datasheet of chip CMPS2 there is a formula with actan(x/y)*180/pi. Is it right to use for x and y only the LSB (8 bits) multiplied with the number 0,48.... as shown in the datasheet in point 1? It‘s clear that I only get values between 0 and 90 degrees because the sensor delivers only unsigned values. When I use atan2 I get values between 0 and 180 degrees. I know it would be easier if I had signed data. But unfortunately the sensor delivers only unsigned values. How is such a conversion form of unsigned magnometer data 0 to 360 degrees possible?