Seeed
Published © MIT

Using Magnetic to Measure Angle Changes

This demonstrates how to use the Grove - 12 bit Magnetic Rotary Position Sensor(AS5600) to accurately measure angle changes.

BeginnerProtip30 minutes256

Things used in this project

Hardware components

Seeed Grove - 12 bit Magnetic Rotary Position Sensor(AS5600)
×1
Seeeduino V4.2
Seeeduino V4.2
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Laser cutter (generic)
Laser cutter (generic)

Story

Read more

Custom parts and enclosures

Calibrators design file

Code

readAngle.ino

C/C++
#include <Wire.h>
#include <AS5600.h>
#ifdef ARDUINO_SAMD_VARIANT_COMPLIANCE
  #define SERIAL SerialUSB
  #define SYS_VOL   3.3
#else
  #define SERIAL Serial
  #define SYS_VOL   5
#endif

AMS_5600 ams5600;

int ang, lang = 0;

void setup()
{
  SERIAL.begin(115200);
  Wire.begin();
  SERIAL.println(">>>>>>>>>>>>>>>>>>>>>>>>>>> ");
  if(ams5600.detectMagnet() == 0 ){
    while(1){
        if(ams5600.detectMagnet() == 1 ){
            SERIAL.print("Current Magnitude: ");
            SERIAL.println(ams5600.getMagnitude());
            break;
        }
        else{
            SERIAL.println("Can not detect magnet");
        }
        delay(1000);
    }
  }
}
/*******************************************************
/* Function: convertRawAngleToDegrees
/* In: angle data from AMS_5600::getRawAngle
/* Out: human readable degrees as float
/* Description: takes the raw angle and calculates
/* float value in degrees.
/*******************************************************/
float convertRawAngleToDegrees(word newAngle)
{
  /* Raw data reports 0 - 4095 segments, which is 0.087 of a degree */
  float retVal = newAngle * 0.087;
  ang = retVal;
  return ang;
}
void loop()
{
    SERIAL.println(String(convertRawAngleToDegrees(ams5600.getRawAngle()),DEC));
}

Credits

Seeed

Seeed

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Seeed R&D Team

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