Benjamin Leverett / Mbed 2 deprecated Final_Project

Ben: change on lcd and sd card draft

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

main.cpp@3:f0f6530b145f, 2020-04-25 (annotated)

Committer:
bleverett3
Date:
Sat Apr 25 22:43:02 2020 +0000
Revision:
3:f0f6530b145f
Parent:
2:f65d4206b47b
Child:
5:c25fe08829a4
Ben, change on lcd and bluetooth draft;

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
bleverett3 3:f0f6530b145f 12 //Hardware setup
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];
bleverett3 3:f0f6530b145f 32
bleverett3 3:f0f6530b145f 33 //RSSI data
bleverett3 3:f0f6530b145f 34 int averageCount = 0;
bleverett3 3:f0f6530b145f 35 volatile int RSSI_array[15]
chenchen2020 0:bedc25613430 36 volatile int risk_level = 0;
bleverett3 3:f0f6530b145f 37 volatile int changed = 0;
chenchen2020 0:bedc25613430 38
chenchen2020 2:f65d4206b47b 39 //RTOS Mutex Lock
chenchen2020 0:bedc25613430 40 Mutex mutex_lock;
chenchen2020 0:bedc25613430 41
bleverett3 3:f0f6530b145f 42 ;
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] == '-') {
chenchen2020 2:f65d4206b47b 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);
bleverett3 3:f0f6530b145f 76 int temp_risk_level;
chenchen2020 2:f65d4206b47b 77 if(average < 55) {
bleverett3 3:f0f6530b145f 78 temp_risk_level = 3;
chenchen2020 2:f65d4206b47b 79 } else if(average > 55 && average < 70) {
bleverett3 3:f0f6530b145f 80 temp_risk_level = 2;
chenchen2020 2:f65d4206b47b 81 } else if(average > 70 && average < 90) {
bleverett3 3:f0f6530b145f 82 temp_risk_level = 1;
chenchen2020 2:f65d4206b47b 83 } else {
bleverett3 3:f0f6530b145f 84 temp_risk_level = 0;
chenchen2020 0:bedc25613430 85 }
bleverett3 3:f0f6530b145f 86 if(temp_risk_level != risk_level){
bleverett3 3:f0f6530b145f 87 changed = 1;
bleverett3 3:f0f6530b145f 88 }
bleverett3 3:f0f6530b145f 89 risk_level = temp_risk_level;
chenchen2020 0:bedc25613430 90 }
chenchen2020 0:bedc25613430 91 pc.printf("Risk level: ");
chenchen2020 0:bedc25613430 92 pc.printf("%i\n", risk_level);
chenchen2020 2:f65d4206b47b 93 } else {
chenchen2020 0:bedc25613430 94 pc.printf("Disconnected\n");
chenchen2020 2:f65d4206b47b 95 datalogged = 0;
chenchen2020 2:f65d4206b47b 96 }
chenchen2020 2:f65d4206b47b 97 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 98 }
chenchen2020 2:f65d4206b47b 99
chenchen2020 2:f65d4206b47b 100 //This portion of the code handles peripherals
chenchen2020 2:f65d4206b47b 101 /*
chenchen2020 2:f65d4206b47b 102 void speaker_alarm()
chenchen2020 2:f65d4206b47b 103 {
chenchen2020 2:f65d4206b47b 104 while(1){
chenchen2020 2:f65d4206b47b 105 if(risk_level >= 2 && datalogged){
chenchen2020 2:f65d4206b47b 106 mySpeaker.PlayNote(969.0, 0.5, 1.0);
chenchen2020 2:f65d4206b47b 107 mySpeaker.PlayNote(800.0, 0.5, 1.0);
chenchen2020 2:f65d4206b47b 108 }else{
chenchen2020 2:f65d4206b47b 109 mySpeaker.PlayNote(0.0, 0.0, 0.0);
chenchen2020 2:f65d4206b47b 110 }
chenchen2020 2:f65d4206b47b 111 }
chenchen2020 2:f65d4206b47b 112 }
chenchen2020 2:f65d4206b47b 113 */
chenchen2020 2:f65d4206b47b 114
chenchen2020 2:f65d4206b47b 115 void logging_SD_card()
bleverett3 3:f0f6530b145f 116 {
bleverett3 3:f0f6530b145f 117 set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37
bleverett3 3:f0f6530b145f 118 time_t seconds = time(NULL);
bleverett3 3:f0f6530b145f 119
bleverett3 3:f0f6530b145f 120 mkdir("/sd/mydir", 0777);
bleverett3 3:f0f6530b145f 121
bleverett3 3:f0f6530b145f 122 FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
bleverett3 3:f0f6530b145f 123 if(fp == NULL) {
bleverett3 3:f0f6530b145f 124 error("Could not open file for write\n");
bleverett3 3:f0f6530b145f 125 }
bleverett3 3:f0f6530b145f 126
bleverett3 3:f0f6530b145f 127 if(){ //add condtioin for risk level 1
bleverett3 3:f0f6530b145f 128 fprintf(fp, "Risk level 1");
bleverett3 3:f0f6530b145f 129 fprintf(fp, "Time" , ctime(&seconds));
bleverett3 3:f0f6530b145f 130 }
bleverett3 3:f0f6530b145f 131
bleverett3 3:f0f6530b145f 132 if (){//add condtioin for risk level 2
bleverett3 3:f0f6530b145f 133 fprintf(fp, "Risk level 2");
bleverett3 3:f0f6530b145f 134 fprintf(fp, "Time" , ctime(&seconds));
bleverett3 3:f0f6530b145f 135 }
bleverett3 3:f0f6530b145f 136
bleverett3 3:f0f6530b145f 137 if() {//add condtioin for risk level 3
bleverett3 3:f0f6530b145f 138 fprintf(fp, "Risk level 2");
bleverett3 3:f0f6530b145f 139 fprintf(fp, "Time" , ctime(&seconds));
bleverett3 3:f0f6530b145f 140 }
bleverett3 3:f0f6530b145f 141 }
chenchen2020 2:f65d4206b47b 142
chenchen2020 2:f65d4206b47b 143 }
chenchen2020 2:f65d4206b47b 144
chenchen2020 2:f65d4206b47b 145 void blink_leds()
chenchen2020 2:f65d4206b47b 146 {
chenchen2020 2:f65d4206b47b 147 while(1){
chenchen2020 2:f65d4206b47b 148 if(risk_level <= 1 && datalogged){
chenchen2020 2:f65d4206b47b 149 greenLED = 1;
chenchen2020 2:f65d4206b47b 150 redLED = 0;
chenchen2020 2:f65d4206b47b 151 yellowLED = 0;
chenchen2020 2:f65d4206b47b 152 }else if(risk_level == 2 && datalogged){
chenchen2020 2:f65d4206b47b 153 yellowLED = 1;
chenchen2020 2:f65d4206b47b 154 greenLED = 0;
chenchen2020 2:f65d4206b47b 155 redLED = 0;
chenchen2020 2:f65d4206b47b 156 }else if(risk_level == 3 && datalogged){
chenchen2020 2:f65d4206b47b 157 redLED = 1;
chenchen2020 2:f65d4206b47b 158 yellowLED = 0;
chenchen2020 2:f65d4206b47b 159 greenLED = 0;
chenchen2020 2:f65d4206b47b 160 }else{
chenchen2020 2:f65d4206b47b 161 redLED = 0;
chenchen2020 2:f65d4206b47b 162 yellowLED = 0;
chenchen2020 2:f65d4206b47b 163 greenLED = 0;
chenchen2020 2:f65d4206b47b 164 }
chenchen2020 0:bedc25613430 165 }
chenchen2020 0:bedc25613430 166 }
chenchen2020 0:bedc25613430 167
chenchen2020 2:f65d4206b47b 168 void display_ulcd()
chenchen2020 2:f65d4206b47b 169 {
bleverett3 3:f0f6530b145f 170 mutex_lock.lock();
bleverett3 3:f0f6530b145f 171 uLCD.color(WHITE);
bleverett3 3:f0f6530b145f 172 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 173 while(1){
bleverett3 3:f0f6530b145f 174 if (changed) {
bleverett3 3:f0f6530b145f 175 mutex_lock.lock();
bleverett3 3:f0f6530b145f 176 if(risk_level <= 1){
bleverett3 3:f0f6530b145f 177 uLCD.cls();
bleverett3 3:f0f6530b145f 178 uLCD.locate(5, 7);
bleverett3 3:f0f6530b145f 179 uLCD.text_width(2);
bleverett3 3:f0f6530b145f 180 uLCD.text_height(2);
bleverett3 3:f0f6530b145f 181 uLCD.background_color(GREEN);
bleverett3 3:f0f6530b145f 182 uLCD.textbackground_color(GREEN);
bleverett3 3:f0f6530b145f 183 uLCD.printf("Safe");
bleverett3 3:f0f6530b145f 184 }else if(risk_level == 2){
bleverett3 3:f0f6530b145f 185 uLCD.cls();
bleverett3 3:f0f6530b145f 186 uLCD.locate(1, 7);
bleverett3 3:f0f6530b145f 187 uLCD.text_width(2);
bleverett3 3:f0f6530b145f 188 uLCD.text_height(2);
bleverett3 3:f0f6530b145f 189 uLCD.background_color(0xFFFF00);
bleverett3 3:f0f6530b145f 190 uLCD.textbackground_color(0xFFFF00);
bleverett3 3:f0f6530b145f 191 uLCD.printf("Cautious");
bleverett3 3:f0f6530b145f 192 }else if(risk_level == 3){
bleverett3 3:f0f6530b145f 193 uLCD.cls();
bleverett3 3:f0f6530b145f 194 uLCD.locate(3, 7);
bleverett3 3:f0f6530b145f 195 uLCD.text_width(2);
bleverett3 3:f0f6530b145f 196 uLCD.text_height(2);
bleverett3 3:f0f6530b145f 197 uLCD.background_color(RED);
bleverett3 3:f0f6530b145f 198 uLCD.textbackground_color(RED);
bleverett3 3:f0f6530b145f 199 uLCD.printf("Hazard");
bleverett3 3:f0f6530b145f 200 }
bleverett3 3:f0f6530b145f 201 changed = 0;
bleverett3 3:f0f6530b145f 202 mutex_lock.unlock();
chenchen2020 2:f65d4206b47b 203 }
chenchen2020 2:f65d4206b47b 204 }
chenchen2020 0:bedc25613430 205 }
chenchen2020 0:bedc25613430 206
chenchen2020 0:bedc25613430 207 int main()
chenchen2020 0:bedc25613430 208 {
chenchen2020 0:bedc25613430 209 cmdstuff = 1;
chenchen2020 0:bedc25613430 210 at.send("AT") && at.recv("OK");
chenchen2020 0:bedc25613430 211 at.send("AT+AB ChangeDefaultBaud [9600]", 3) && at.recv("OK");
chenchen2020 0:bedc25613430 212 pc.baud(9600);
chenchen2020 0:bedc25613430 213 ble.baud(9600);
chenchen2020 2:f65d4206b47b 214
chenchen2020 2:f65d4206b47b 215 //Thread SD_Thread();
chenchen2020 2:f65d4206b47b 216 Thread ULCD_Thread(display_ulcd);
chenchen2020 2:f65d4206b47b 217 Thread LED_Thread(blink_leds);
chenchen2020 2:f65d4206b47b 218 //Thread Speaker_Thread(speaker_alarm);
bleverett3 3:f0f6530b145f 219
chenchen2020 0:bedc25613430 220 while(1) {
chenchen2020 0:bedc25613430 221 parse_RSSI();
chenchen2020 0:bedc25613430 222 }
chenchen2020 0:bedc25613430 223 }