Flying Sea Glider / Mbed 2 deprecated 2019_10may_firstflight_jcw_nosd

most functionality to splashdwon, find neutral and start mission. short timeouts still in code for testing, will adjust to go directly to sit_idle after splashdown

Dependencies:   mbed MODSERIAL FATFileSystem

Sensors/Sensors.cpp

Committer:
joel_ssc
Date:
2019-05-13
Revision:
92:52a91656458a
Parent:
74:d281aaef9766

File content as of revision 92:52a91656458a:

#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 );
}

//currently using BCE CS line for this data
float Sensors::getAltimeterChannelReadings() {
    return adc().readCh2();             //channel 2 (third channel) from the schematic
}