Mathias Rasmussen / SoundSensor

Grove soundsensor lib

soundsensor.cpp@6:fb51a4b71646, 2019-01-21 (annotated)

Committer:
math991e
Date:
Mon Jan 21 13:08:11 2019 +0000
Revision:
6:fb51a4b71646
Parent:
5:944179f9d11f
Child:
7:6f0c583b4f54
bugfixing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
math991e 0:18d442efc99a 1 #include "soundsensor.h"
math991e 0:18d442efc99a 2
math991e 0:18d442efc99a 3 soundsensor::soundsensor(PinName pin){
math991e 1:29daa2bdd0c6 4 soundsensor::setPin(pin);
math991e 0:18d442efc99a 5 }
math991e 0:18d442efc99a 6
math991e 0:18d442efc99a 7 void soundsensor::setPin(PinName pin){
math991e 0:18d442efc99a 8 this->_pin=pin;
math991e 0:18d442efc99a 9 }
math991e 0:18d442efc99a 10
math991e 0:18d442efc99a 11 PinName soundsensor::getPin(){
math991e 0:18d442efc99a 12 return this->_pin;
math991e 0:18d442efc99a 13 }
math991e 0:18d442efc99a 14
math991e 0:18d442efc99a 15 float soundsensor::convertToDb(float value){
math991e 6:fb51a4b71646 16 return 16.801 * log(value/65535) + 9.872;
math991e 0:18d442efc99a 17 }
math991e 0:18d442efc99a 18
math991e 0:18d442efc99a 19 float soundsensor::revertFromDb(float value){
math991e 0:18d442efc99a 20 /**
math991e 0:18d442efc99a 21 *CODE NEEDS TO BE IMPLEMENTED
math991e 0:18d442efc99a 22 **/
math991e 1:29daa2bdd0c6 23 return 0;
math991e 0:18d442efc99a 24 }
math991e 0:18d442efc99a 25
math991e 0:18d442efc99a 26 float soundsensor::listen(bool toDb){
math991e 1:29daa2bdd0c6 27 AnalogIn sensor(this->getPin());
math991e 6:fb51a4b71646 28 int values[] = {};
math991e 6:fb51a4b71646 29 float sum;
math991e 6:fb51a4b71646 30 float average;
math991e 3:372e67c123c3 31
math991e 3:372e67c123c3 32 for(int i=0;i<100;i++){
math991e 4:89a9c205446c 33 values[i] = sensor.read_u16();
math991e 3:372e67c123c3 34 wait(0.0001);
math991e 3:372e67c123c3 35 }
math991e 3:372e67c123c3 36
math991e 3:372e67c123c3 37 for(int j=0;j<100;j++){
math991e 3:372e67c123c3 38 sum += values[j];
math991e 3:372e67c123c3 39 }
math991e 3:372e67c123c3 40 average = sum/100;
math991e 3:372e67c123c3 41
math991e 0:18d442efc99a 42 if(toDb){
math991e 3:372e67c123c3 43 return this->convertToDb(average);
math991e 0:18d442efc99a 44 }else{
math991e 3:372e67c123c3 45 return average;
math991e 0:18d442efc99a 46 }
math991e 0:18d442efc99a 47 }