Benjamin Leverett / Mbed 2 deprecated Final_Project_2

Ben with semaphore test 1

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

main.cpp@4:0a11aa484a67, 2020-04-24 (annotated)

Committer:
bleverett3
Date:
Fri Apr 24 21:06:06 2020 +0000
Revision:
4:0a11aa484a67
Parent:
3:2a4bee05d0c1
Child:
5:53a86492622d
Ben with semaphore test 1

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");
bleverett3 4:0a11aa484a67 22
bleverett3 4:0a11aa484a67 23 Semaphore sem(0);
chenchen2020 2:f65d4206b47b 24 //Speaker mySpeaker(p21);
chenchen2020 0:bedc25613430 25
chenchen2020 0:bedc25613430 26 //AT command data handlers
chenchen2020 2:f65d4206b47b 27 bool datalogged = 0;
chenchen2020 0:bedc25613430 28 char delimiter[] = "\r\n";
chenchen2020 0:bedc25613430 29 int buffer_size = 256;
chenchen2020 0:bedc25613430 30 int timeout = 100;
chenchen2020 0:bedc25613430 31 bool debug = false;
chenchen2020 0:bedc25613430 32 ATParser at(ble, delimiter, buffer_size, timeout, debug);
chenchen2020 0:bedc25613430 33 char buffer[10];
chenchen2020 0:bedc25613430 34 volatile int risk_level = 0;
bleverett3 4:0a11aa484a67 35 int temp_risk = -1;
chenchen2020 0:bedc25613430 36
chenchen2020 2:f65d4206b47b 37 //RTOS Mutex Lock
chenchen2020 0:bedc25613430 38 Mutex mutex_lock;
chenchen2020 0:bedc25613430 39
chenchen2020 0:bedc25613430 40 //Global Data points and arrays
chenchen2020 0:bedc25613430 41 int averageCount = 0;
chenchen2020 0:bedc25613430 42 volatile int RSSI_array[15];
chenchen2020 0:bedc25613430 43
chenchen2020 2:f65d4206b47b 44 //This portion of the code handles RSSI readings
chenchen2020 0:bedc25613430 45
chenchen2020 2:f65d4206b47b 46 int calculate_average(volatile int *input, int size)
chenchen2020 2:f65d4206b47b 47 {
chenchen2020 0:bedc25613430 48 int average;
chenchen2020 2:f65d4206b47b 49 for(int i = 0; i< size; i++) {
chenchen2020 0:bedc25613430 50 average = average + input[i];
chenchen2020 0:bedc25613430 51 }
chenchen2020 0:bedc25613430 52 average = average/size;
chenchen2020 0:bedc25613430 53 return average;
chenchen2020 0:bedc25613430 54 }
chenchen2020 0:bedc25613430 55
chenchen2020 2:f65d4206b47b 56 void parse_RSSI()
chenchen2020 2:f65d4206b47b 57 {
chenchen2020 2:f65d4206b47b 58 mutex_lock.lock();
chenchen2020 1:8eb0ee57df9f 59 at.send("AT+BLEGETRSSI") && at.read(buffer, 10);
chenchen2020 2:f65d4206b47b 60 if(buffer[0] == '-') {
bleverett3 4:0a11aa484a67 61 //datalogged = 1;
chenchen2020 0:bedc25613430 62 pc.printf("RSSI: ");
chenchen2020 0:bedc25613430 63 pc.putc(buffer[1]);
chenchen2020 0:bedc25613430 64 pc.putc(buffer[2]);
chenchen2020 0:bedc25613430 65 pc.printf("\n");
chenchen2020 0:bedc25613430 66 int digit1 = buffer[1] - 48;
chenchen2020 0:bedc25613430 67 int digit2 = buffer[2] - 48;
chenchen2020 0:bedc25613430 68 int total = 10*digit1 + digit2;
chenchen2020 2:f65d4206b47b 69 if (averageCount <= 15) {
chenchen2020 0:bedc25613430 70 RSSI_array[averageCount] = total;
chenchen2020 0:bedc25613430 71 }
chenchen2020 2:f65d4206b47b 72 averageCount++;
chenchen2020 2:f65d4206b47b 73 if(averageCount > 15 && buffer[0] == '-') {
chenchen2020 0:bedc25613430 74 averageCount = 0;
chenchen2020 0:bedc25613430 75 int average = calculate_average(RSSI_array, 15);
chenchen2020 2:f65d4206b47b 76 if(average < 55) {
bleverett3 4:0a11aa484a67 77 temp_risk = 3;
chenchen2020 2:f65d4206b47b 78 } else if(average > 55 && average < 70) {
bleverett3 4:0a11aa484a67 79 temp_risk = 2;
chenchen2020 2:f65d4206b47b 80 } else if(average > 70 && average < 90) {
bleverett3 4:0a11aa484a67 81 temp_risk = 1;
chenchen2020 2:f65d4206b47b 82 } else {
bleverett3 4:0a11aa484a67 83 temp_risk = 0;
bleverett3 4:0a11aa484a67 84 }
bleverett3 4:0a11aa484a67 85 if(risk_level != temp_risk) {
bleverett3 4:0a11aa484a67 86 sem.release();
bleverett3 4:0a11aa484a67 87 risk_level = temp_risk;
chenchen2020 0:bedc25613430 88 }
chenchen2020 0:bedc25613430 89 }
chenchen2020 0:bedc25613430 90 pc.printf("Risk level: ");
chenchen2020 0:bedc25613430 91 pc.printf("%i\n", risk_level);
chenchen2020 2:f65d4206b47b 92 } else {
chenchen2020 0:bedc25613430 93 pc.printf("Disconnected\n");
chenchen2020 2:f65d4206b47b 94 datalogged = 0;
chenchen2020 2:f65d4206b47b 95 }
chenchen2020 2:f65d4206b47b 96 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 97 }
chenchen2020 2:f65d4206b47b 98
chenchen2020 2:f65d4206b47b 99 //This portion of the code handles peripherals
chenchen2020 2:f65d4206b47b 100 /*
chenchen2020 2:f65d4206b47b 101 void speaker_alarm()
chenchen2020 2:f65d4206b47b 102 {
chenchen2020 2:f65d4206b47b 103 while(1){
chenchen2020 2:f65d4206b47b 104 if(risk_level >= 2 && datalogged){
chenchen2020 2:f65d4206b47b 105 mySpeaker.PlayNote(969.0, 0.5, 1.0);
chenchen2020 2:f65d4206b47b 106 mySpeaker.PlayNote(800.0, 0.5, 1.0);
chenchen2020 2:f65d4206b47b 107 }else{
chenchen2020 2:f65d4206b47b 108 mySpeaker.PlayNote(0.0, 0.0, 0.0);
chenchen2020 2:f65d4206b47b 109 }
chenchen2020 2:f65d4206b47b 110 }
chenchen2020 2:f65d4206b47b 111 }
chenchen2020 2:f65d4206b47b 112 */
chenchen2020 2:f65d4206b47b 113
chenchen2020 2:f65d4206b47b 114 void logging_SD_card()
chenchen2020 2:f65d4206b47b 115 {
chenchen2020 2:f65d4206b47b 116
chenchen2020 2:f65d4206b47b 117 }
chenchen2020 2:f65d4206b47b 118
chenchen2020 2:f65d4206b47b 119 void blink_leds()
chenchen2020 2:f65d4206b47b 120 {
chenchen2020 2:f65d4206b47b 121 while(1){
chenchen2020 2:f65d4206b47b 122 if(risk_level <= 1 && datalogged){
chenchen2020 2:f65d4206b47b 123 greenLED = 1;
chenchen2020 2:f65d4206b47b 124 redLED = 0;
chenchen2020 2:f65d4206b47b 125 yellowLED = 0;
chenchen2020 2:f65d4206b47b 126 }else if(risk_level == 2 && datalogged){
chenchen2020 2:f65d4206b47b 127 yellowLED = 1;
chenchen2020 2:f65d4206b47b 128 greenLED = 0;
chenchen2020 2:f65d4206b47b 129 redLED = 0;
chenchen2020 2:f65d4206b47b 130 }else if(risk_level == 3 && datalogged){
chenchen2020 2:f65d4206b47b 131 redLED = 1;
chenchen2020 2:f65d4206b47b 132 yellowLED = 0;
chenchen2020 2:f65d4206b47b 133 greenLED = 0;
chenchen2020 2:f65d4206b47b 134 }else{
chenchen2020 2:f65d4206b47b 135 redLED = 0;
chenchen2020 2:f65d4206b47b 136 yellowLED = 0;
chenchen2020 2:f65d4206b47b 137 greenLED = 0;
chenchen2020 2:f65d4206b47b 138 }
chenchen2020 0:bedc25613430 139 }
chenchen2020 0:bedc25613430 140 }
chenchen2020 0:bedc25613430 141
chenchen2020 2:f65d4206b47b 142 void display_ulcd()
chenchen2020 2:f65d4206b47b 143 {
chenchen2020 3:2a4bee05d0c1 144 mutex_lock.lock();
chenchen2020 3:2a4bee05d0c1 145 uLCD.color(WHITE);
chenchen2020 3:2a4bee05d0c1 146 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 147 while(1){
bleverett3 4:0a11aa484a67 148 sem.wait();
chenchen2020 2:f65d4206b47b 149 mutex_lock.lock();
chenchen2020 2:f65d4206b47b 150 if(risk_level <= 1 && datalogged){
chenchen2020 3:2a4bee05d0c1 151 uLCD.cls();
chenchen2020 3:2a4bee05d0c1 152 uLCD.locate(5, 7);
chenchen2020 3:2a4bee05d0c1 153 uLCD.text_width(2);
chenchen2020 3:2a4bee05d0c1 154 uLCD.text_height(2);
chenchen2020 3:2a4bee05d0c1 155 uLCD.background_color(GREEN);
chenchen2020 3:2a4bee05d0c1 156 uLCD.textbackground_color(GREEN);
chenchen2020 3:2a4bee05d0c1 157 uLCD.printf("Safe");
chenchen2020 2:f65d4206b47b 158 }else if(risk_level == 2 && datalogged){
chenchen2020 3:2a4bee05d0c1 159 uLCD.cls();
chenchen2020 3:2a4bee05d0c1 160 uLCD.locate(1, 7);
chenchen2020 3:2a4bee05d0c1 161 uLCD.text_width(2);
chenchen2020 3:2a4bee05d0c1 162 uLCD.text_height(2);
chenchen2020 3:2a4bee05d0c1 163 uLCD.background_color(0xFFFF00);
chenchen2020 3:2a4bee05d0c1 164 uLCD.textbackground_color(0xFFFF00);
chenchen2020 3:2a4bee05d0c1 165 uLCD.printf("Cautious");
chenchen2020 2:f65d4206b47b 166 }else if(risk_level == 3 && datalogged){
chenchen2020 3:2a4bee05d0c1 167 uLCD.cls();
chenchen2020 3:2a4bee05d0c1 168 uLCD.locate(3, 7);
chenchen2020 3:2a4bee05d0c1 169 uLCD.text_width(2);
chenchen2020 3:2a4bee05d0c1 170 uLCD.text_height(2);
chenchen2020 3:2a4bee05d0c1 171 uLCD.background_color(RED);
chenchen2020 3:2a4bee05d0c1 172 uLCD.textbackground_color(RED);
chenchen2020 3:2a4bee05d0c1 173 uLCD.printf("Hazard");
chenchen2020 2:f65d4206b47b 174 }else{
chenchen2020 2:f65d4206b47b 175 uLCD.background_color(BLACK);
chenchen2020 3:2a4bee05d0c1 176 uLCD.printf("waiting");
chenchen2020 2:f65d4206b47b 177 }
chenchen2020 2:f65d4206b47b 178 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 179 }
chenchen2020 0:bedc25613430 180 }
chenchen2020 0:bedc25613430 181
chenchen2020 0:bedc25613430 182 int main()
chenchen2020 0:bedc25613430 183 {
chenchen2020 0:bedc25613430 184 cmdstuff = 1;
chenchen2020 0:bedc25613430 185 at.send("AT") && at.recv("OK");
chenchen2020 0:bedc25613430 186 at.send("AT+AB ChangeDefaultBaud [9600]", 3) && at.recv("OK");
chenchen2020 0:bedc25613430 187 pc.baud(9600);
chenchen2020 0:bedc25613430 188 ble.baud(9600);
chenchen2020 2:f65d4206b47b 189
chenchen2020 2:f65d4206b47b 190 //Thread SD_Thread();
chenchen2020 2:f65d4206b47b 191 Thread ULCD_Thread(display_ulcd);
chenchen2020 2:f65d4206b47b 192 Thread LED_Thread(blink_leds);
chenchen2020 2:f65d4206b47b 193 //Thread Speaker_Thread(speaker_alarm);
chenchen2020 0:bedc25613430 194
chenchen2020 0:bedc25613430 195 while(1) {
chenchen2020 0:bedc25613430 196 parse_RSSI();
chenchen2020 0:bedc25613430 197 }
chenchen2020 0:bedc25613430 198 }