File content as of revision 0:208bd045dd31:

#include "mbed.h"
#include "mDot.h"
#include "MTSLog.h"
#include "MTSText.h"

using namespace mts;

#define REED_PORT   PA_3
Serial pc(USBTX,USBRX);
DigitalIn reed_gpio(REED_PORT);


int reed_lock_write = 0;
int reed_lock_read = 0;
int reed_has_changed = 0;
int reed_value = 0;
int reed_value_to_send = 0;
int reed_value_last_sent = 0;

 void isr_reed_sensor_change(void) {

    while(reed_lock_read) {}
    reed_lock_write = 1;
    
    reed_has_changed = 1;
    reed_value = reed_gpio;

    reed_lock_write = 0;
}

int has_reed_changed(void) {
    
    int change;
    
    while(reed_lock_write) {}
    reed_lock_read = 1;
    
    change = reed_value_last_sent != reed_value;
    reed_value_to_send = reed_value;
    reed_has_changed = 0;
    
    reed_lock_read = 0;
    
    return(change);
}
    
void has_reed_changed_since_last_sent(void) {
    
    int change;
    
    has_reed_changed();
    
    change = reed_value_to_send != reed_value_last_sent;
    
    return(change);
}

void send_reed(void) {
    
    reed_value_last_sent = reed_value_to_send;

    pc.printf("Sending REED = %d\r\n",reed_value_to_send);
}
    

int main() {
    
    mDot* dot;
    long last_sent = 0;
    
    pc.attach(&callback,RawSerial::RxIrq);
    pc.baud(115200);
    
    pc.printf("\r\n\r\n********************************\r\n");
    pc.printf(        "*                              *\r\n");
    pc.printf(        "*            Edge Reed         *\r\n");
    pc.printf(        "*                              *\r\n");
    pc.printf(        "* Build: " __DATE__ ", " __TIME__" *\r\n");
    pc.printf(        "********************************\r\n\r\n");

    dot = mDot::getInstance();

    InterruptIn *reed_sensor_change;
    reed_sensor_change = new InterruptIn(REED_PORT);
    reed_sensor_change->fall(&isr_reed_sensor_change);
    reed_sensor_change->rise(&isr_reed_sensor_change);
     
    while (true) {
        
        int time_since_last_sent = time(NULL) - last_sent;
        
        if(time_since_last_sent > 60) {
            
            has_reed_changed();
            send_reed();
            last_sent = time(NULL);
        }
        
        if(has_reed_changed() && time_since_last_sent>10) {
            
           Thread::wait(100);
           
           if(has_reed_changed_since_last_sent()) {
           
                send_reed();
                last_sent = time(NULL);
            }
        }
                
        dot->sleep(sleep_time, mDot::RTC_ALARM_OR_INTERRUPT, true);
    }
}