SUNGTAE KIM / Mbed 2 deprecated WIZwiki-W7500_LoRa_Dust_Roadsign

Dust Display Road Sign using Lora Connectivity

Dependencies:   mbed

main.cpp@0:ee87c3246381, 2018-10-30 (annotated)

Committer:
stkim92
Date:
Tue Oct 30 06:26:12 2018 +0000
Revision:
0:ee87c3246381
Dust Display Road Sign using LoRa Connectivity

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stkim92 0:ee87c3246381 1 #include "mbed.h"
stkim92 0:ee87c3246381 2 #include "kor_char_code.h"
stkim92 0:ee87c3246381 3 #include <stdint.h>
stkim92 0:ee87c3246381 4
stkim92 0:ee87c3246381 5 #define COV_RATIO 0.2 //ug/mmm / mv
stkim92 0:ee87c3246381 6 #define NO_DUST_VOLTAGE 400 //mv
stkim92 0:ee87c3246381 7 #define SYS_VOLTAGE 5000
stkim92 0:ee87c3246381 8
stkim92 0:ee87c3246381 9 Serial pc(USBTX,USBRX); // tx, rx
stkim92 0:ee87c3246381 10 Serial TFT(PC_02,PC_03); // tx, rx
stkim92 0:ee87c3246381 11 Serial lora(PA_13,PA_14); // tx, rx
stkim92 0:ee87c3246381 12 Timer timer;
stkim92 0:ee87c3246381 13 AnalogIn dustVal(A0);
stkim92 0:ee87c3246381 14 DigitalOut myled(D6);
stkim92 0:ee87c3246381 15 int flag_first = 0;
stkim92 0:ee87c3246381 16
stkim92 0:ee87c3246381 17 int calibration(int m)
stkim92 0:ee87c3246381 18 {
stkim92 0:ee87c3246381 19 static int _buff[10], sum;
stkim92 0:ee87c3246381 20 const int _buff_max = 10;
stkim92 0:ee87c3246381 21 int i;
stkim92 0:ee87c3246381 22
stkim92 0:ee87c3246381 23 if(flag_first == 0)
stkim92 0:ee87c3246381 24 {
stkim92 0:ee87c3246381 25 flag_first = 1;
stkim92 0:ee87c3246381 26
stkim92 0:ee87c3246381 27 for(i = 0, sum = 0; i < _buff_max; i++)
stkim92 0:ee87c3246381 28 {
stkim92 0:ee87c3246381 29 _buff[i] = m;
stkim92 0:ee87c3246381 30 sum += _buff[i];
stkim92 0:ee87c3246381 31 }
stkim92 0:ee87c3246381 32 return m;
stkim92 0:ee87c3246381 33 }
stkim92 0:ee87c3246381 34 else
stkim92 0:ee87c3246381 35 {
stkim92 0:ee87c3246381 36 sum -= _buff[0];
stkim92 0:ee87c3246381 37 for(i = 0; i < (_buff_max - 1); i++)
stkim92 0:ee87c3246381 38 {
stkim92 0:ee87c3246381 39 _buff[i] = _buff[i + 1];
stkim92 0:ee87c3246381 40 }
stkim92 0:ee87c3246381 41 _buff[9] = m;
stkim92 0:ee87c3246381 42 sum += _buff[9];
stkim92 0:ee87c3246381 43
stkim92 0:ee87c3246381 44 i = sum / 10.0;
stkim92 0:ee87c3246381 45 return i;
stkim92 0:ee87c3246381 46 }
stkim92 0:ee87c3246381 47 }
stkim92 0:ee87c3246381 48
stkim92 0:ee87c3246381 49
stkim92 0:ee87c3246381 50 int main()
stkim92 0:ee87c3246381 51 {
stkim92 0:ee87c3246381 52 char buffer[200];
stkim92 0:ee87c3246381 53 TFT.baud(115200);
stkim92 0:ee87c3246381 54 lora.baud(38400);
stkim92 0:ee87c3246381 55 unsigned int curr_Time1;
stkim92 0:ee87c3246381 56 unsigned int curr_Time2;
stkim92 0:ee87c3246381 57 float analogVal =0;
stkim92 0:ee87c3246381 58 int analogVal_u16 =0;
stkim92 0:ee87c3246381 59 float digitalVal =0;
stkim92 0:ee87c3246381 60 float dustDensity =0;
stkim92 0:ee87c3246381 61 int samplingTime = 280;
stkim92 0:ee87c3246381 62 int deltaTime = 40;
stkim92 0:ee87c3246381 63 int sleepTime = 9680;
stkim92 0:ee87c3246381 64 int x=1;
stkim92 0:ee87c3246381 65 int y=1;
stkim92 0:ee87c3246381 66 int w = 500;
stkim92 0:ee87c3246381 67 int h = 220;
stkim92 0:ee87c3246381 68 int red = 255;
stkim92 0:ee87c3246381 69 int green = 255;
stkim92 0:ee87c3246381 70 int blue = 255;
stkim92 0:ee87c3246381 71 int fill=1;
stkim92 0:ee87c3246381 72
stkim92 0:ee87c3246381 73 timer.start();
stkim92 0:ee87c3246381 74 curr_Time1 = timer.read();
stkim92 0:ee87c3246381 75 TFT.printf("$l,0,%d,%d,%d#",red,green,blue); // 사각형 색(흰색) 지정
stkim92 0:ee87c3246381 76 lora.printf("AT+RST\r\n");
stkim92 0:ee87c3246381 77
stkim92 0:ee87c3246381 78 while(1)
stkim92 0:ee87c3246381 79 {
stkim92 0:ee87c3246381 80 /*
stkim92 0:ee87c3246381 81 if(lora.readable()){
stkim92 0:ee87c3246381 82 lora.gets(buffer,40);
stkim92 0:ee87c3246381 83
stkim92 0:ee87c3246381 84 if( strstr(buffer,"JOINED\r\n") == NULL ){
stkim92 0:ee87c3246381 85 TFT.printf("$f,4,1,#"); // 글자 크기 조절
stkim92 0:ee87c3246381 86 TFT.printf("$f,0,Not joined ,1,120,#\r\n");
stkim92 0:ee87c3246381 87 continue;
stkim92 0:ee87c3246381 88 }
stkim92 0:ee87c3246381 89
stkim92 0:ee87c3246381 90 if( strstr(buffer,"JOINED\r\n") != NULL ){
stkim92 0:ee87c3246381 91 TFT.printf("$f,0,joined !!! ,1,140,#");
stkim92 0:ee87c3246381 92 continue;
stkim92 0:ee87c3246381 93 }
stkim92 0:ee87c3246381 94
stkim92 0:ee87c3246381 95 }*/
stkim92 0:ee87c3246381 96 TFT.printf("$f,4,2,#"); // 글자 크기 조절
stkim92 0:ee87c3246381 97 curr_Time2 = timer.read();
stkim92 0:ee87c3246381 98
stkim92 0:ee87c3246381 99
stkim92 0:ee87c3246381 100 if( curr_Time2-curr_Time1 == 1) {
stkim92 0:ee87c3246381 101
stkim92 0:ee87c3246381 102 myled = 0;
stkim92 0:ee87c3246381 103 wait_us(samplingTime);
stkim92 0:ee87c3246381 104
stkim92 0:ee87c3246381 105 analogVal = dustVal.read();
stkim92 0:ee87c3246381 106 analogVal_u16 = dustVal.read_u16();
stkim92 0:ee87c3246381 107 wait_us(deltaTime);
stkim92 0:ee87c3246381 108 myled = 1;
stkim92 0:ee87c3246381 109 wait_us(sleepTime);
stkim92 0:ee87c3246381 110
stkim92 0:ee87c3246381 111 analogVal_u16 = calibration(analogVal_u16); // 보정
stkim92 0:ee87c3246381 112
stkim92 0:ee87c3246381 113 //digitalVal = analogVal_u16 *(5.0/4096);
stkim92 0:ee87c3246381 114 digitalVal = (SYS_VOLTAGE / 4096.0) * analogVal_u16; //adc변 (mv)
stkim92 0:ee87c3246381 115 // dustDensity = (0.17*digitalVal) -0.1;
stkim92 0:ee87c3246381 116
stkim92 0:ee87c3246381 117 if(digitalVal >= NO_DUST_VOLTAGE)
stkim92 0:ee87c3246381 118 {
stkim92 0:ee87c3246381 119 digitalVal -= NO_DUST_VOLTAGE;
stkim92 0:ee87c3246381 120 dustDensity = digitalVal * COV_RATIO; // Voltage(mv)값을 dust density로 변(ug/m3)
stkim92 0:ee87c3246381 121 dustDensity -= 50;
stkim92 0:ee87c3246381 122 }
stkim92 0:ee87c3246381 123 else
stkim92 0:ee87c3246381 124 {
stkim92 0:ee87c3246381 125 dustDensity = 0;
stkim92 0:ee87c3246381 126 }
stkim92 0:ee87c3246381 127
stkim92 0:ee87c3246381 128
stkim92 0:ee87c3246381 129 TFT.printf("$l,2,%d,%d,%d,%d,%d#",x,y,w,h,fill==0?0:1); //흰 사각형 출력(지우기)
stkim92 0:ee87c3246381 130 TFT.printf("$f,0,Fine Dust(PM 2.5),1,1,#\r\n");
stkim92 0:ee87c3246381 131 TFT.printf("$f,0,Value : %f (ug/m3),1,30,#\r\n",dustDensity);
stkim92 0:ee87c3246381 132 TFT.printf("$f,0,current Time : %f (s),1,60,#\r\n",timer.read());
stkim92 0:ee87c3246381 133
stkim92 0:ee87c3246381 134 if( (dustDensity>=0) && (dustDensity<=15) )
stkim92 0:ee87c3246381 135 {
stkim92 0:ee87c3246381 136 TFT.printf("$f,0,STATUS :,1,90,#\r\n");
stkim92 0:ee87c3246381 137 TFT.printf("$f,1,0,174,240#\r\n");
stkim92 0:ee87c3246381 138 TFT.printf("$f,0,GOOD :> ,140,90,#\r\n");
stkim92 0:ee87c3246381 139 TFT.printf("$f,1,0,0,0#\r\n");
stkim92 0:ee87c3246381 140
stkim92 0:ee87c3246381 141 }
stkim92 0:ee87c3246381 142
stkim92 0:ee87c3246381 143 else if( (dustDensity>=16) && (dustDensity<=50) )
stkim92 0:ee87c3246381 144 {
stkim92 0:ee87c3246381 145 TFT.printf("$f,0,STATUS :,1,90,#\r\n");
stkim92 0:ee87c3246381 146 TFT.printf("$f,1,120,254,98#\r\n");
stkim92 0:ee87c3246381 147 TFT.printf("$f,0,NORMAL :) ,140,90,#\r\n");
stkim92 0:ee87c3246381 148 TFT.printf("$f,1,0,0,0#\r\n");
stkim92 0:ee87c3246381 149 }
stkim92 0:ee87c3246381 150
stkim92 0:ee87c3246381 151 else if( (dustDensity>=51) && (dustDensity<=100) )
stkim92 0:ee87c3246381 152 {
stkim92 0:ee87c3246381 153 TFT.printf("$f,0,STATUS :,1,90,#\r\n");
stkim92 0:ee87c3246381 154 TFT.printf("$f,1,255,255,75#\r\n");
stkim92 0:ee87c3246381 155 TFT.printf("$f,0,BAD :( ,140,90,#\r\n");
stkim92 0:ee87c3246381 156 TFT.printf("$f,1,0,0,0#\r\n");
stkim92 0:ee87c3246381 157 }
stkim92 0:ee87c3246381 158
stkim92 0:ee87c3246381 159 else if(dustDensity>=101)
stkim92 0:ee87c3246381 160 {
stkim92 0:ee87c3246381 161 TFT.printf("$f,0,STATUS :,1,90,#\r\n");
stkim92 0:ee87c3246381 162 TFT.printf("$f,1,255,51,51#\r\n");
stkim92 0:ee87c3246381 163 TFT.printf("$f,0,DANGER :<,140,90,#\r\n");
stkim92 0:ee87c3246381 164 TFT.printf("$f,1,0,0,0#\r\n");
stkim92 0:ee87c3246381 165 }
stkim92 0:ee87c3246381 166 else
stkim92 0:ee87c3246381 167 {
stkim92 0:ee87c3246381 168 TFT.printf("$f,0,STATUS :,1,90,#\r\n");
stkim92 0:ee87c3246381 169 TFT.printf("$f,1,0,0,0#\r\n");
stkim92 0:ee87c3246381 170 TFT.printf("$f,0,WAIT !,140,90,#\r\n");
stkim92 0:ee87c3246381 171 TFT.printf("$f,1,0,0,0#\r\n");
stkim92 0:ee87c3246381 172 }
stkim92 0:ee87c3246381 173
stkim92 0:ee87c3246381 174
stkim92 0:ee87c3246381 175 //lora.printf("AT+SEND 01015445//\r\n");
stkim92 0:ee87c3246381 176
stkim92 0:ee87c3246381 177 curr_Time1 = curr_Time2;
stkim92 0:ee87c3246381 178 }
stkim92 0:ee87c3246381 179 }
stkim92 0:ee87c3246381 180 }
stkim92 0:ee87c3246381 181
stkim92 0:ee87c3246381 182