File content as of revision 5:c2468a69aacb:

/**
* @file Bob.cpp
* @brief just so functions to communicate with the
* processor board for the LDC1101
*
* @author Bob Giesberts
*
* @date 2015-12-18
*/

#include "Bob.h"
#include "mbed.h"
#include "mbed_debug.h"
#include "WakeUp.h"


Bob::Bob(PinName led, PinName sd_enable, PinName sd_present, PinName battery, PinName V_Det) : _led(led), _sd_enable(sd_enable)
{
    _led = 0;

    _sd_enable = 1;    

    _sd_card_detect = new DigitalIn( sd_present ); 
    _sd_card_detect->mode( PullUp );

    _batt = new AnalogIn( battery );
    
    _V_Det = new DigitalIn( V_Det ); 
    _V_Det->mode( PullUp );
    
    // WakeUp::calibrate();
}

bool Bob::checkSD(void)
{
    _sd_enable.write(1);
    return !_sd_card_detect->read();
}

void Bob::wakeup(void)
{
    _sd_enable.write(1);   // power SD-card + power sensor
    // wait(0.3);          // this shouldn't be necessary because loading the LDC library already takes 0.81 s
}

void Bob::beforesleep(void)
{
    _sd_enable.write(0);
}

void Bob::sleep(uint32_t ms)
{
     _sd_enable.write(0);           // unpower SD-card + unpower sensor
     WakeUp::calibrate();           // calibration takes 100 ms
     WakeUp::set_ms( ms - 100 );    // substract this from the total sleep time
     deepsleep();
}

// battery voltage should be 3.1V (min) < 3.7V (typ) < 4.22V (max)
float Bob::battery(void)
{
    return (float)_batt->read() * 3.0 * 2.0;
}

void Bob::flash( int n )
{
    _led = 0;
    for(int i=0; i<n*2; i++){
        _led = 1-_led; 
        wait(0.2);
    }
}

void Bob::ledon(void)   { _led   = 1; }
void Bob::ledoff(void)  { _led   = 0; }