Log Test Code

Dependencies:   C12832 mbed

Fork of VoltageThreshold by A Clark

main.cpp

Committer:
ajclark2
Date:
2014-03-28
Revision:
1:2178a66e1223
Parent:
0:e99407475b62
Child:
2:d5b23f4e6884

File content as of revision 1:2178a66e1223:

#include "mbed.h"
#define PI 3.1415926

AnalogIn   ain_v1(p20); // 
//AnalogIn   ain_v2(p19);

int main()
{
    float v1, m, b, p_in, c, r, f
    int value1
    
    // Voltage to Power calculations
    v1      = ain_v1;   // Comes from mBed (Can adjust manually for now)
    b       = 2.095;    // (volts) Direct function generator measurement
    m       = .0316;    // volts/dBm (Calculated at 2000 MHz and 0 and -40 dBm)
    p_in    = (v1-b)/m; // Derived from v = m*p+b (linear relationship of voltage and power)
                    // m = slope , v1 = vin, b = y-intercept
   
    // Range equation Terms
    Pt      = .001;  //(mW or 0 dBm) Power Transmitted. This should be constant for a phone I think... it just changes with the function generator
    Gt      = 1;     // Unitless (1 for FG)
    Gr      = ??;    // How do we get this? Should be on datasheet... but calc required? 
    Pr      = p_in;
    
    // Free Space Loss Terms
    f       = 2000    // (MHz) This will be constant for a phone... but what to put for the FG
    c       = 2.99792458*10^8;
    
    r       = [c*(sqrt(Pt*Gt*Gr)/Pr)]/(4*PI*f);
    
    
    
}