Benjamin Leverett / Mbed 2 deprecated Final_Project_2

Ben with semaphore test 1

Dependencies:   mbed mbed-rtos 4DGL-uLCD-SE SDFileSystem ATParser

main.cpp@3:2a4bee05d0c1, 2020-04-24 (annotated)

Committer:
chenchen2020
Date:
Fri Apr 24 20:46:56 2020 +0000
Revision:
3:2a4bee05d0c1
Parent:
2:f65d4206b47b
Child:
4:0a11aa484a67
working code v3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chenchen2020 0:bedc25613430 1 #include "mbed.h"
chenchen2020 0:bedc25613430 2 #include "rtos.h"
chenchen2020 0:bedc25613430 3 #include "ATParser.h"
chenchen2020 0:bedc25613430 4 #include "uLCD_4DGL.h"
chenchen2020 0:bedc25613430 5 #include "SDFileSystem.h"
chenchen2020 2:f65d4206b47b 6 #include "Speaker.h"
chenchen2020 0:bedc25613430 7 //#include "wave_player.h"
chenchen2020 0:bedc25613430 8 #include <string>
chenchen2020 2:f65d4206b47b 9 #include <iostream>
chenchen2020 0:bedc25613430 10 using namespace std;
chenchen2020 0:bedc25613430 11
chenchen2020 0:bedc25613430 12 //General setups
chenchen2020 0:bedc25613430 13 DigitalOut cmdMode(p18);
chenchen2020 0:bedc25613430 14 Serial pc(USBTX, USBRX);
chenchen2020 0:bedc25613430 15 BufferedSerial ble(p13,p14);
chenchen2020 0:bedc25613430 16 DigitalOut cmdstuff(p18);
chenchen2020 2:f65d4206b47b 17 DigitalOut greenLED(p24);
chenchen2020 2:f65d4206b47b 18 DigitalOut yellowLED(p25);
chenchen2020 2:f65d4206b47b 19 DigitalOut redLED(p26);
chenchen2020 0:bedc25613430 20 uLCD_4DGL uLCD(p28,p27,p30);
chenchen2020 0:bedc25613430 21 SDFileSystem sd(p5, p6, p7, p8, "sd");
chenchen2020 2:f65d4206b47b 22 //Speaker mySpeaker(p21);
chenchen2020 0:bedc25613430 23
chenchen2020 0:bedc25613430 24 //AT command data handlers
chenchen2020 2:f65d4206b47b 25 bool datalogged = 0;
chenchen2020 0:bedc25613430 26 char delimiter[] = "\r\n";
chenchen2020 0:bedc25613430 27 int buffer_size = 256;
chenchen2020 0:bedc25613430 28 int timeout = 100;
chenchen2020 0:bedc25613430 29 bool debug = false;
chenchen2020 0:bedc25613430 30 ATParser at(ble, delimiter, buffer_size, timeout, debug);
chenchen2020 0:bedc25613430 31 char buffer[10];
chenchen2020 0:bedc25613430 32 volatile int risk_level = 0;
chenchen2020 0:bedc25613430 33
chenchen2020 2:f65d4206b47b 34 //RTOS Mutex Lock
chenchen2020 0:bedc25613430 35 Mutex mutex_lock;
chenchen2020 0:bedc25613430 36
chenchen2020 0:bedc25613430 37 //Global Data points and arrays
chenchen2020 0:bedc25613430 38 int averageCount = 0;
chenchen2020 0:bedc25613430 39 volatile int RSSI_array[15];
chenchen2020 0:bedc25613430 40
chenchen2020 2:f65d4206b47b 41 //This portion of the code handles RSSI readings
chenchen2020 0:bedc25613430 42
chenchen2020 2:f65d4206b47b 43 int calculate_average(volatile int *input, int size)
chenchen2020 2:f65d4206b47b 44 {
chenchen2020 0:bedc25613430 45 int average;
chenchen2020 2:f65d4206b47b 46 for(int i = 0; i< size; i++) {
chenchen2020 0:bedc25613430 47 average = average + input[i];
chenchen2020 0:bedc25613430 48 }
chenchen2020 0:bedc25613430 49 average = average/size;
chenchen2020 0:bedc25613430 50 return average;
chenchen2020 0:bedc25613430 51 }
chenchen2020 0:bedc25613430 52
chenchen2020 2:f65d4206b47b 53 void parse_RSSI()
chenchen2020 2:f65d4206b47b 54 {
chenchen2020 2:f65d4206b47b 55 mutex_lock.lock();
chenchen2020 1:8eb0ee57df9f 56 at.send("AT+BLEGETRSSI") && at.read(buffer, 10);
chenchen2020 2:f65d4206b47b 57 if(buffer[0] == '-') {
chenchen2020 2:f65d4206b47b 58 datalogged = 1;
chenchen2020 0:bedc25613430 59 pc.printf("RSSI: ");
chenchen2020 0:bedc25613430 60 pc.putc(buffer[1]);
chenchen2020 0:bedc25613430 61 pc.putc(buffer[2]);
chenchen2020 0:bedc25613430 62 pc.printf("\n");
chenchen2020 0:bedc25613430 63 int digit1 = buffer[1] - 48;
chenchen2020 0:bedc25613430 64 int digit2 = buffer[2] - 48;
chenchen2020 0:bedc25613430 65 int total = 10*digit1 + digit2;
chenchen2020 2:f65d4206b47b 66 if (averageCount <= 15) {
chenchen2020 0:bedc25613430 67 RSSI_array[averageCount] = total;
chenchen2020 0:bedc25613430 68 }
chenchen2020 2:f65d4206b47b 69 averageCount++;
chenchen2020 2:f65d4206b47b 70 if(averageCount > 15 && buffer[0] == '-') {
chenchen2020 0:bedc25613430 71 averageCount = 0;
chenchen2020 0:bedc25613430 72 int average = calculate_average(RSSI_array, 15);
chenchen2020 2:f65d4206b47b 73 if(average < 55) {
chenchen2020 0:bedc25613430 74 risk_level = 3;
chenchen2020 2:f65d4206b47b 75 } else if(average > 55 && average < 70) {
chenchen2020 0:bedc25613430 76 risk_level = 2;
chenchen2020 2:f65d4206b47b 77 } else if(average > 70 && average < 90) {
chenchen2020 0:bedc25613430 78 risk_level = 1;
chenchen2020 2:f65d4206b47b 79 } else {
chenchen2020 2:f65d4206b47b 80 risk_level = 0;
chenchen2020 0:bedc25613430 81 }
chenchen2020 0:bedc25613430 82 }
chenchen2020 0:bedc25613430 83 pc.printf("Risk level: ");
chenchen2020 0:bedc25613430 84 pc.printf("%i\n", risk_level);
chenchen2020 2:f65d4206b47b 85 } else {
chenchen2020 0:bedc25613430 86 pc.printf("Disconnected\n");
chenchen2020 2:f65d4206b47b 87 datalogged = 0;
chenchen2020 2:f65d4206b47b 88 }
chenchen2020 2:f65d4206b47b 89 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 90 }
chenchen2020 2:f65d4206b47b 91
chenchen2020 2:f65d4206b47b 92 //This portion of the code handles peripherals
chenchen2020 2:f65d4206b47b 93 /*
chenchen2020 2:f65d4206b47b 94 void speaker_alarm()
chenchen2020 2:f65d4206b47b 95 {
chenchen2020 2:f65d4206b47b 96 while(1){
chenchen2020 2:f65d4206b47b 97 if(risk_level >= 2 && datalogged){
chenchen2020 2:f65d4206b47b 98 mySpeaker.PlayNote(969.0, 0.5, 1.0);
chenchen2020 2:f65d4206b47b 99 mySpeaker.PlayNote(800.0, 0.5, 1.0);
chenchen2020 2:f65d4206b47b 100 }else{
chenchen2020 2:f65d4206b47b 101 mySpeaker.PlayNote(0.0, 0.0, 0.0);
chenchen2020 2:f65d4206b47b 102 }
chenchen2020 2:f65d4206b47b 103 }
chenchen2020 2:f65d4206b47b 104 }
chenchen2020 2:f65d4206b47b 105 */
chenchen2020 2:f65d4206b47b 106
chenchen2020 2:f65d4206b47b 107 void logging_SD_card()
chenchen2020 2:f65d4206b47b 108 {
chenchen2020 2:f65d4206b47b 109
chenchen2020 2:f65d4206b47b 110 }
chenchen2020 2:f65d4206b47b 111
chenchen2020 2:f65d4206b47b 112 void blink_leds()
chenchen2020 2:f65d4206b47b 113 {
chenchen2020 2:f65d4206b47b 114 while(1){
chenchen2020 2:f65d4206b47b 115 if(risk_level <= 1 && datalogged){
chenchen2020 2:f65d4206b47b 116 greenLED = 1;
chenchen2020 2:f65d4206b47b 117 redLED = 0;
chenchen2020 2:f65d4206b47b 118 yellowLED = 0;
chenchen2020 2:f65d4206b47b 119 }else if(risk_level == 2 && datalogged){
chenchen2020 2:f65d4206b47b 120 yellowLED = 1;
chenchen2020 2:f65d4206b47b 121 greenLED = 0;
chenchen2020 2:f65d4206b47b 122 redLED = 0;
chenchen2020 2:f65d4206b47b 123 }else if(risk_level == 3 && datalogged){
chenchen2020 2:f65d4206b47b 124 redLED = 1;
chenchen2020 2:f65d4206b47b 125 yellowLED = 0;
chenchen2020 2:f65d4206b47b 126 greenLED = 0;
chenchen2020 2:f65d4206b47b 127 }else{
chenchen2020 2:f65d4206b47b 128 redLED = 0;
chenchen2020 2:f65d4206b47b 129 yellowLED = 0;
chenchen2020 2:f65d4206b47b 130 greenLED = 0;
chenchen2020 2:f65d4206b47b 131 }
chenchen2020 0:bedc25613430 132 }
chenchen2020 0:bedc25613430 133 }
chenchen2020 0:bedc25613430 134
chenchen2020 2:f65d4206b47b 135 void display_ulcd()
chenchen2020 2:f65d4206b47b 136 {
chenchen2020 3:2a4bee05d0c1 137 mutex_lock.lock();
chenchen2020 3:2a4bee05d0c1 138 uLCD.color(WHITE);
chenchen2020 3:2a4bee05d0c1 139 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 140 while(1){
chenchen2020 2:f65d4206b47b 141 mutex_lock.lock();
chenchen2020 2:f65d4206b47b 142 if(risk_level <= 1 && datalogged){
chenchen2020 3:2a4bee05d0c1 143 uLCD.cls();
chenchen2020 3:2a4bee05d0c1 144 uLCD.locate(5, 7);
chenchen2020 3:2a4bee05d0c1 145 uLCD.text_width(2);
chenchen2020 3:2a4bee05d0c1 146 uLCD.text_height(2);
chenchen2020 3:2a4bee05d0c1 147 uLCD.background_color(GREEN);
chenchen2020 3:2a4bee05d0c1 148 uLCD.textbackground_color(GREEN);
chenchen2020 3:2a4bee05d0c1 149 uLCD.printf("Safe");
chenchen2020 2:f65d4206b47b 150 }else if(risk_level == 2 && datalogged){
chenchen2020 3:2a4bee05d0c1 151 uLCD.cls();
chenchen2020 3:2a4bee05d0c1 152 uLCD.locate(1, 7);
chenchen2020 3:2a4bee05d0c1 153 uLCD.text_width(2);
chenchen2020 3:2a4bee05d0c1 154 uLCD.text_height(2);
chenchen2020 3:2a4bee05d0c1 155 uLCD.background_color(0xFFFF00);
chenchen2020 3:2a4bee05d0c1 156 uLCD.textbackground_color(0xFFFF00);
chenchen2020 3:2a4bee05d0c1 157 uLCD.printf("Cautious");
chenchen2020 2:f65d4206b47b 158 }else if(risk_level == 3 && datalogged){
chenchen2020 3:2a4bee05d0c1 159 uLCD.cls();
chenchen2020 3:2a4bee05d0c1 160 uLCD.locate(3, 7);
chenchen2020 3:2a4bee05d0c1 161 uLCD.text_width(2);
chenchen2020 3:2a4bee05d0c1 162 uLCD.text_height(2);
chenchen2020 3:2a4bee05d0c1 163 uLCD.background_color(RED);
chenchen2020 3:2a4bee05d0c1 164 uLCD.textbackground_color(RED);
chenchen2020 3:2a4bee05d0c1 165 uLCD.printf("Hazard");
chenchen2020 2:f65d4206b47b 166 }else{
chenchen2020 2:f65d4206b47b 167 uLCD.background_color(BLACK);
chenchen2020 3:2a4bee05d0c1 168 uLCD.printf("waiting");
chenchen2020 2:f65d4206b47b 169 }
chenchen2020 2:f65d4206b47b 170 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 171 }
chenchen2020 0:bedc25613430 172 }
chenchen2020 0:bedc25613430 173
chenchen2020 0:bedc25613430 174 int main()
chenchen2020 0:bedc25613430 175 {
chenchen2020 0:bedc25613430 176 cmdstuff = 1;
chenchen2020 0:bedc25613430 177 at.send("AT") && at.recv("OK");
chenchen2020 0:bedc25613430 178 at.send("AT+AB ChangeDefaultBaud [9600]", 3) && at.recv("OK");
chenchen2020 0:bedc25613430 179 pc.baud(9600);
chenchen2020 0:bedc25613430 180 ble.baud(9600);
chenchen2020 2:f65d4206b47b 181
chenchen2020 2:f65d4206b47b 182 //Thread SD_Thread();
chenchen2020 2:f65d4206b47b 183 Thread ULCD_Thread(display_ulcd);
chenchen2020 2:f65d4206b47b 184 Thread LED_Thread(blink_leds);
chenchen2020 2:f65d4206b47b 185 //Thread Speaker_Thread(speaker_alarm);
chenchen2020 0:bedc25613430 186
chenchen2020 0:bedc25613430 187 while(1) {
chenchen2020 0:bedc25613430 188 parse_RSSI();
chenchen2020 0:bedc25613430 189 }
chenchen2020 0:bedc25613430 190 }