Flying Sea Glider / Mbed 2 deprecated 2019_13sep_jcw_nosd

update with altimeter, swimfile.txt endleg.txt, etc see changes_13sep.txt also reset_PI()

Dependencies:   mbed MODSERIAL FATFileSystem

Sensors/Sensors.cpp

Committer:
tnhnrl
Date:
2018-07-30
Revision:
73:f6f378311c8d
Child:
74:d281aaef9766

File content as of revision 73:f6f378311c8d:

#include "Sensors.hpp"
#include "StaticDefs.hpp"

Sensors::Sensors() {
    _reference_voltage = 5.0;   //check this against actual v_ref
}  
  
    // extrapolated from graph if V_s = 5.0
    // https://www.nxp.com/docs/en/data-sheet/MPXA6115A.pdf   
float Sensors::getInternalPressurePSI() {
    return ( ( 22.029 * ( _reference_voltage * adc().readCh5() / 4095.0 ) + 10.884 ) * 0.145038 ); // Press_Xducer (on-board)
}

float Sensors::getVoltageInput() {
    return ( adc().readCh6() / 4095.0 * _reference_voltage * 7.8 );
}

float Sensors::getCurrentInput() {
    return ( adc().readCh7() / 4095.0 * _reference_voltage );
}

float Sensors::getAltimeterChannelReadings() {
    return adc().readCh5();
}