![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
semi integrated
Dependencies: Speaker mbed 4DGL-uLCD-SE hcsr04
main.cpp
- Committer:
- fiachra
- Date:
- 2020-12-16
- Revision:
- 9:d1b00a2a8e25
- Parent:
- 8:f3ab61374cd0
- Child:
- 10:f29ed3675509
File content as of revision 9:d1b00a2a8e25:
#include "mbed.h" #include "hcsr04.h" #include "Speaker.h" HCSR04 usensor(p25,p6); Serial pc(USBTX, USBRX); Speaker mySpeaker(p18); unsigned int dist; float averageDistance(); void beeping(); float i; int main() { while(1) { usensor.start(); averageDistance(); beeping(); pc.printf("cm:%ld\n",dist ); wait_ms(50); } } float averageDistance() /** Divide the running total by 10 to get the average distance to get more accurate readings on the sensor**/ { int a = usensor.get_dist_cm(); int b = usensor.get_dist_cm(); int c = usensor.get_dist_cm(); int d = usensor.get_dist_cm(); int e = usensor.get_dist_cm(); int f = usensor.get_dist_cm(); int g = usensor.get_dist_cm(); int h = usensor.get_dist_cm(); int i = usensor.get_dist_cm(); int j = usensor.get_dist_cm(); dist = (a+b+c+d+e+f+g+h+i+j)/10; return dist; } void beeping() /* @Brief Function to create the effect of varying beeping sounds depending on how close the sensor is to an object interspersed with the led changing color depending on the distance */ { int distance = averageDistance(); if (distance > 2000) i=0.05; //sensor defaults to 2k+ when dist<~3cm if (distance < 150) i=0.6; if (distance < 100) i=0.55; if (distance < 90) i=0.5; if (distance < 80) i=0.45; if (distance < 70) i=0.4; if (distance < 60) i=0.35; if (distance < 50) i=0.3; if (distance < 40) i=0.25; if (distance < 30) i=0.2; if (distance < 20) i=0.15; if (distance < 10) i=0.1; if (distance < 5) i=0.05; mySpeaker.PlayNote(329.63, i, 1.0); }