Leong Kum Loong (NYP) / Mbed 2 deprecated Utrasonic_Example

Example for my HC-SR04 Ultrasonic Sensor library.

Dependencies:   C12832 HCSR04 mbed

Fork of Utrasonic_Example by Leong Kum Loong (NYP)

main.cpp@3:a7677858ce0b, 2017-12-04 (annotated)

Committer:
reesey
Date:
Mon Dec 04 04:36:18 2017 +0000
Revision:
3:a7677858ce0b
Parent:
0:bb6f81d15af7 
Written by Leong Kum Loong.; 04 Dec 2017, REV. 0;     ; When HCSR04.h reference is included, DO NOT declare pin p21 & p22 as it is used by my library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
reesey 0:bb6f81d15af7 1 #include "mbed.h"
reesey 0:bb6f81d15af7 2 #include "C12832.h"
reesey 0:bb6f81d15af7 3 #include "HCSR04.h"
reesey 0:bb6f81d15af7 4 /*
reesey 0:bb6f81d15af7 5 Written by Leong Kum Loong.
reesey 0:bb6f81d15af7 6 04 Dec 2017, REV. 0
reesey 0:bb6f81d15af7 7
reesey 0:bb6f81d15af7 8 When HCSR04.h reference is included, DO NOT declare pin p21 & p22 as it is used by my library.
reesey 0:bb6f81d15af7 9 */
reesey 0:bb6f81d15af7 10
reesey 0:bb6f81d15af7 11 C12832 lcd(p5, p7, p6, p8, p11);
reesey 0:bb6f81d15af7 12 DigitalOut led(LED1);
reesey 0:bb6f81d15af7 13 InterruptIn joyCtr(p14);
reesey 0:bb6f81d15af7 14
reesey 0:bb6f81d15af7 15 int unit = 1;
reesey 0:bb6f81d15af7 16 char str[] = "Distance: %.2f cm ";
reesey 0:bb6f81d15af7 17
reesey 0:bb6f81d15af7 18 void config() {
reesey 0:bb6f81d15af7 19 if(unit == 1){
reesey 0:bb6f81d15af7 20 unit = 2;
reesey 0:bb6f81d15af7 21 strcpy(str, "Distance: %.3f inch ");
reesey 0:bb6f81d15af7 22 } else {
reesey 0:bb6f81d15af7 23 unit = 1;
reesey 0:bb6f81d15af7 24 strcpy(str, "Distance: %.2f cm ");
reesey 0:bb6f81d15af7 25 }
reesey 0:bb6f81d15af7 26 getDistance(unit); //Unit 1 for CM & 2 for INCH
reesey 0:bb6f81d15af7 27 }
reesey 0:bb6f81d15af7 28
reesey 0:bb6f81d15af7 29 int main() {
reesey 0:bb6f81d15af7 30 joyCtr.rise(config);
reesey 0:bb6f81d15af7 31 getDistance(); //Start retrieving distance.
reesey 0:bb6f81d15af7 32 lcd.cls();
reesey 3:a7677858ce0b 33
reesey 0:bb6f81d15af7 34 while(1) {
reesey 0:bb6f81d15af7 35 lcd.locate(0,1);
reesey 0:bb6f81d15af7 36 lcd.printf(str, readDistance()); //Read retrieved distance.
reesey 0:bb6f81d15af7 37
reesey 0:bb6f81d15af7 38 led = !led;
reesey 0:bb6f81d15af7 39 wait_ms(100); //**** Wait function will cause delay to the ultrasonic sensor next read cycle.
reesey 0:bb6f81d15af7 40 }
reesey 0:bb6f81d15af7 41 }