People Counter / Mbed 2 deprecated person_counter

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed mbed-rtos 4DGL-uLCD-SE HC_SR04_Ultrasonic_Library

main.cpp@10:7a939a54515e, 2020-04-24 (annotated)

Committer:
rmalik8
Date:
Fri Apr 24 03:00:36 2020 +0000
Revision:
10:7a939a54515e
Parent:
9:f4f03767acc0
Child:
11:f5d0c8bf1849
added bluetooth thread

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mmarine3 2:1ec843c95914 1 #include "mbed.h"
rmalik8 4:7d02b3f3bee6 2 #include "rtos.h"
mmarine3 2:1ec843c95914 3 #include "SDFileSystem.h"
mmarine3 2:1ec843c95914 4 #include "uLCD_4DGL.h"
rmalik8 4:7d02b3f3bee6 5 #include "ultrasonic.h"
mmarine3 8:c0a6a3363e43 6 #include "wave_player.h"
rmalik8 4:7d02b3f3bee6 7
rmalik8 3:b5cdd40e99e9 8 //#include <stdio.h>
mmarine3 2:1ec843c95914 9 #include <string>
mmarine3 2:1ec843c95914 10
rmalik8 4:7d02b3f3bee6 11
mmarine3 9:f4f03767acc0 12 uLCD_4DGL uLCD(p13, p14, p12); // Initialize uLCD serial tx, serial rx, reset pin;
rmalik8 4:7d02b3f3bee6 13 SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card
rmalik8 10:7a939a54515e 14 RawSerial blue(p9,p10); //Initialize Blutooth
mmarine3 9:f4f03767acc0 15 //Serial BT(p9,p10);
mmarine3 9:f4f03767acc0 16 AnalogOut speaker(p18); //Initialize speaker
mmarine3 9:f4f03767acc0 17 wave_player waver(&speaker); //Initialize Waveplayer
rmalik8 10:7a939a54515e 18 Mutex serial_mutex;
mmarine3 8:c0a6a3363e43 19 Mutex dist;
mmarine3 2:1ec843c95914 20 DigitalOut MyLED(LED1);
mmarine3 2:1ec843c95914 21
rmalik8 10:7a939a54515e 22 volatile int musicChoice = 0;
rmalik8 10:7a939a54515e 23 //musicChoice can be values 0 to 3
rmalik8 10:7a939a54515e 24 voltatile int sdist = 0;
mmarine3 9:f4f03767acc0 25 void sonar(int distance)
rmalik8 4:7d02b3f3bee6 26 {
rmalik8 4:7d02b3f3bee6 27 //put code here to execute when the sonar distance has changed
mmarine3 9:f4f03767acc0 28 dist.lock();
mmarine3 9:f4f03767acc0 29 sdist = distance;
mmarine3 9:f4f03767acc0 30 dist.unlock();
mmarine3 9:f4f03767acc0 31 //printf("Sonar Distance:\r\n %d", sdist);
mmarine3 9:f4f03767acc0 32 }
rmalik8 4:7d02b3f3bee6 33
mmarine3 9:f4f03767acc0 34 ultrasonic mu(p30, p29, .1, 1, &sonar); //Set the trigger pin to p30 and the echo pin to p29
rmalik8 4:7d02b3f3bee6 35 //have updates every .1 seconds and a timeout after 1
mmarine3 9:f4f03767acc0 36 //second, and call sonar when the distance changes
mmarine3 9:f4f03767acc0 37
mmarine3 9:f4f03767acc0 38 void Sonar(void const* arguments)
mmarine3 9:f4f03767acc0 39 {
mmarine3 9:f4f03767acc0 40 mu.startUpdates();//start measuring the distance
mmarine3 9:f4f03767acc0 41 while(1)
mmarine3 9:f4f03767acc0 42 {
mmarine3 9:f4f03767acc0 43 //Do something else here
mmarine3 9:f4f03767acc0 44 mu.checkDistance(); //call checkDistance() as much as possible, as this is where
mmarine3 9:f4f03767acc0 45 //the class checks if dist needs to be called.
mmarine3 9:f4f03767acc0 46 Thread::wait(10);
rmalik8 4:7d02b3f3bee6 47 }
rmalik8 4:7d02b3f3bee6 48 }
mmarine3 2:1ec843c95914 49
mmarine3 8:c0a6a3363e43 50 //Thread to print the TOF and Sonar Values to the LCD
mmarine3 8:c0a6a3363e43 51 void LCD(void const *arguments)
mmarine3 8:c0a6a3363e43 52 {
mmarine3 8:c0a6a3363e43 53 Thread::wait(1000); //Wait for lidar and sonar setup
mmarine3 8:c0a6a3363e43 54 while(1)
mmarine3 8:c0a6a3363e43 55 {
rmalik8 10:7a939a54515e 56 serial_mutex.lock();
mmarine3 8:c0a6a3363e43 57 uLCD.cls();
mmarine3 8:c0a6a3363e43 58 dist.lock();
mmarine3 9:f4f03767acc0 59 uLCD.printf("Sonar Distance:\n %d", sdist);
mmarine3 8:c0a6a3363e43 60 dist.unlock();
rmalik8 10:7a939a54515e 61 serial_mutex.unlock();
mmarine3 8:c0a6a3363e43 62 Thread::wait(1000); //Allow time to read value before reprint
mmarine3 9:f4f03767acc0 63
mmarine3 8:c0a6a3363e43 64 }
mmarine3 8:c0a6a3363e43 65 }
mmarine3 8:c0a6a3363e43 66
rmalik8 10:7a939a54515e 67 void bluetooth(void const *arguments)
rmalik8 10:7a939a54515e 68 {
rmalik8 10:7a939a54515e 69 char bnum=0;
rmalik8 10:7a939a54515e 70 char bhit=0;
rmalik8 10:7a939a54515e 71 while(1)
rmalik8 10:7a939a54515e 72 {
rmalik8 10:7a939a54515e 73 serial_mutex.lock();
rmalik8 10:7a939a54515e 74 if(!blue.readable()){
rmalik8 10:7a939a54515e 75 Thread::yield();
rmalik8 10:7a939a54515e 76 } else {
rmalik8 10:7a939a54515e 77 if (blue.getc()=='!') {
rmalik8 10:7a939a54515e 78 if (blue.getc()=='B') { //button data packet
rmalik8 10:7a939a54515e 79 bnum = blue.getc(); //button number
rmalik8 10:7a939a54515e 80 bhit = blue.getc(); //1=hit, 0=release
rmalik8 10:7a939a54515e 81 if (blue.getc()==char(~('!' + 'B' + bnum + bhit))) { //checksum OK?
rmalik8 10:7a939a54515e 82
rmalik8 10:7a939a54515e 83 switch (bnum) {
rmalik8 10:7a939a54515e 84 case '1': //number button 1
rmalik8 10:7a939a54515e 85 if (bhit=='1') {
rmalik8 10:7a939a54515e 86 musicChoice = 0;
rmalik8 10:7a939a54515e 87 } else {
rmalik8 10:7a939a54515e 88 //add release code here
rmalik8 10:7a939a54515e 89 }
rmalik8 10:7a939a54515e 90 break;
rmalik8 10:7a939a54515e 91 case '2': //number button 2
rmalik8 10:7a939a54515e 92 if (bhit=='1') {
rmalik8 10:7a939a54515e 93 musicChoice = 1;
rmalik8 10:7a939a54515e 94 } else {
rmalik8 10:7a939a54515e 95 //add release code here
rmalik8 10:7a939a54515e 96 }
rmalik8 10:7a939a54515e 97 break;
rmalik8 10:7a939a54515e 98 case '3': //number button 3
rmalik8 10:7a939a54515e 99 if (bhit=='1') {
rmalik8 10:7a939a54515e 100 musicChoice = 2;
rmalik8 10:7a939a54515e 101 } else {
rmalik8 10:7a939a54515e 102 //add release code here
rmalik8 10:7a939a54515e 103 }
rmalik8 10:7a939a54515e 104 break;
rmalik8 10:7a939a54515e 105 case '4': //number button 4
rmalik8 10:7a939a54515e 106 if (bhit=='1') {
rmalik8 10:7a939a54515e 107 //add hit code here
rmalik8 10:7a939a54515e 108 } else {
rmalik8 10:7a939a54515e 109 //add release code here
rmalik8 10:7a939a54515e 110 }
rmalik8 10:7a939a54515e 111 break;
rmalik8 10:7a939a54515e 112 case '5': //button 5 up arrow
rmalik8 10:7a939a54515e 113 if (bhit=='1') {
rmalik8 10:7a939a54515e 114 musicChoice = 3;
rmalik8 10:7a939a54515e 115 } else {
rmalik8 10:7a939a54515e 116 //add release code here
rmalik8 10:7a939a54515e 117 }
rmalik8 10:7a939a54515e 118 break;
rmalik8 10:7a939a54515e 119 case '6': //button 6 down arrow
rmalik8 10:7a939a54515e 120 if (bhit=='1') {
rmalik8 10:7a939a54515e 121 //add hit code here
rmalik8 10:7a939a54515e 122 } else {
rmalik8 10:7a939a54515e 123 //add release code here
rmalik8 10:7a939a54515e 124 }
rmalik8 10:7a939a54515e 125 break;
rmalik8 10:7a939a54515e 126 case '7': //button 7 left arrow
rmalik8 10:7a939a54515e 127 if (bhit=='1') {
rmalik8 10:7a939a54515e 128 //add hit code here
rmalik8 10:7a939a54515e 129 } else {
rmalik8 10:7a939a54515e 130 //add release code here
rmalik8 10:7a939a54515e 131 }
rmalik8 10:7a939a54515e 132 break;
rmalik8 10:7a939a54515e 133 case '8': //button 8 right arrow
rmalik8 10:7a939a54515e 134 if (bhit=='1') {
rmalik8 10:7a939a54515e 135 //add hit code here
rmalik8 10:7a939a54515e 136 } else {
rmalik8 10:7a939a54515e 137 //add release code here
rmalik8 10:7a939a54515e 138 }
rmalik8 10:7a939a54515e 139 break;
rmalik8 10:7a939a54515e 140 default:
rmalik8 10:7a939a54515e 141 break;
rmalik8 10:7a939a54515e 142 }
rmalik8 10:7a939a54515e 143 }
rmalik8 10:7a939a54515e 144 }
rmalik8 10:7a939a54515e 145 }
rmalik8 10:7a939a54515e 146 }
rmalik8 10:7a939a54515e 147 serial_mutex.unlock();
rmalik8 10:7a939a54515e 148 }
rmalik8 10:7a939a54515e 149 }
rmalik8 10:7a939a54515e 150
mmarine3 2:1ec843c95914 151 int main()
mmarine3 2:1ec843c95914 152 {
mmarine3 7:85d42006e380 153 uLCD.cls();
mmarine3 7:85d42006e380 154 uLCD.baudrate(BAUD_3000000);
mmarine3 7:85d42006e380 155 //wait(1.0);
mmarine3 7:85d42006e380 156
mmarine3 7:85d42006e380 157 //blu.attach(&parse_message,Serial::RxIrq);
mmarine3 8:c0a6a3363e43 158 //Was used in lab 3 to interupt if reading in a blutooth command
mmarine3 7:85d42006e380 159 //Thread t#(name_of_thread_function);
mmarine3 8:c0a6a3363e43 160 Thread t1(LCD);//Initialize LCD thread
mmarine3 9:f4f03767acc0 161 Thread t2(Sonar);//Initialize Sonar thread
rmalik8 4:7d02b3f3bee6 162
mmarine3 9:f4f03767acc0 163
mmarine3 8:c0a6a3363e43 164 /* //Code to read and play a file
mmarine3 7:85d42006e380 165 FILE *wave_file;
mmarine3 7:85d42006e380 166 //printf("Hello World");
mmarine3 7:85d42006e380 167 Thread::wait(1000);
mmarine3 7:85d42006e380 168 wave_file=fopen("/sd/test.wav","r");
mmarine3 7:85d42006e380 169 //serial_mutex.lock();
mmarine3 7:85d42006e380 170 if(wave_file==NULL) printf("file open error!\n\n\r");
mmarine3 7:85d42006e380 171 //serial_mutex.unlock();
mmarine3 7:85d42006e380 172 waver.play(wave_file);
mmarine3 7:85d42006e380 173 fclose(wave_file);
mmarine3 8:c0a6a3363e43 174 */
mmarine3 8:c0a6a3363e43 175
mmarine3 8:c0a6a3363e43 176 //Loop to validate the main loop is executing
mmarine3 8:c0a6a3363e43 177 while(1)
mmarine3 8:c0a6a3363e43 178 {
mmarine3 9:f4f03767acc0 179 //MyLED = !MyLED;
mmarine3 9:f4f03767acc0 180 //Thread::wait(100);
mmarine3 8:c0a6a3363e43 181 }
mmarine3 2:1ec843c95914 182 }