transducer.c

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#include "transducer.h"

void Transducer_construct(Transducer_t *transducer, int pin){

    transducer->txPin = pin;
    transducer->timeStamp = 0;
    set_PWM_frequency(pi, transducer->txPin, TRANSDUCER_FRES_);
    set_PWM_dutycycle(pi, transducer->txPin, HALF_DUTY_CYCLE_);
    gpio_write(pi, transducer->txPin, 0);
}

double Transducer_excite(Transducer_t *transducer){

    transducer->timeStamp = time_time();
    set_PWM_dutycycle(pi, transducer->txPin, HALF_DUTY_CYCLE_);
    gpio_write(pi, transducer->txPin, 0);

    return (transducer->timeStamp);
}