This is the development sandbox for the DRV425EVM and its magnetic sensing.
Dependencies: mbed
Repository for the 2015 OhmBoyZ Capstone group.
main.cpp
- Committer:
- Krabby127
- Date:
- 2015-11-17
- Revision:
- 1:d901038c4bd2
- Parent:
- 0:cbee968c2ec3
- Child:
- 2:a17facee23c1
File content as of revision 1:d901038c4bd2:
#include "mbed.h" #include <math.h> AnalogIn analog_value(A0); DigitalOut led(LED1); int main() { float meas; float b; float offset; printf("\nAnalogIn example\n"); while(1) { meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0) meas = meas * 3300; // Change the value to be in the 0 to 3300 range (currently to mV) printf("meas = %fmV\n\r",meas); // Print out raw measurement in terms of mV b=meas/(4.0*12.2*100.0); // Based on equation 1 printf("b = %f Gauss\n\r",b); // Print out b field measure in Gauss printf("B = %fuT\n\r", b*100.0); // Output B field in micro-Tesla if (meas > 2000) { // If the value is greater than 2V then switch the LED on // greater than 410 microGauss [40 mT] led = 1; } else { led = 0; } wait(1.0); // wait 1 second } }