Koos van der Wat / Mbed 2 deprecated DPTimer_NormalScreen_8R_DIP_4_20mA_In

Dryer timer with analogue input from a dew point sensor.

Dependencies:   mbed TextLCD

main.cpp@3:559e8c72212a, 2019-11-29 (annotated)

Committer:
koosvanderwat
Date:
Fri Nov 29 09:27:44 2019 +0000
Revision:
3:559e8c72212a
Parent:
2:ad0b044d0a10
Child:
4:e8ba2070b69e
Dryer timer with analogue input signal from dew point sensor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 0:334327d1a416 1 #include "mbed.h"
simon 0:334327d1a416 2 #include "TextLCD.h"
koosvanderwat 3:559e8c72212a 3 #include "Watchdog.h"
koosvanderwat 3:559e8c72212a 4 #include "millis.h"
simon 0:334327d1a416 5
koosvanderwat 3:559e8c72212a 6 //Dryer Cycle
koosvanderwat 3:559e8c72212a 7 int PT = 120; // Purge time in seconds
koosvanderwat 3:559e8c72212a 8 int RT = 60; // Repressurisation time in seconds
koosvanderwat 3:559e8c72212a 9
koosvanderwat 3:559e8c72212a 10 //Dew Point Setpoint
koosvanderwat 3:559e8c72212a 11 float SetPoint = -3; // Dew Point Set Point
koosvanderwat 3:559e8c72212a 12
koosvanderwat 3:559e8c72212a 13 //Watchdog
koosvanderwat 3:559e8c72212a 14 Watchdog wd;
koosvanderwat 3:559e8c72212a 15
koosvanderwat 3:559e8c72212a 16 //Screen Setup
koosvanderwat 3:559e8c72212a 17 TextLCD lcd(D6, D9, D2, D3, D4, D5); // rs, e, d4-d7
koosvanderwat 3:559e8c72212a 18
koosvanderwat 3:559e8c72212a 19 Ticker timeKeeping;
koosvanderwat 3:559e8c72212a 20
koosvanderwat 3:559e8c72212a 21 //Pin Allocation
koosvanderwat 3:559e8c72212a 22 DigitalOut my_RHPV(A0);
koosvanderwat 3:559e8c72212a 23 DigitalOut my_RHMV(A1);
koosvanderwat 3:559e8c72212a 24 DigitalOut my_RV(A2);
koosvanderwat 3:559e8c72212a 25 DigitalOut my_LHMV(A6);
koosvanderwat 3:559e8c72212a 26 DigitalOut my_LHPV(A7);
koosvanderwat 3:559e8c72212a 27 DigitalOut my_led(D13);
koosvanderwat 3:559e8c72212a 28 DigitalIn my_Dip2(D11); //Dip 2
koosvanderwat 3:559e8c72212a 29 DigitalIn my_Dip1(D12); //Dip 1
koosvanderwat 3:559e8c72212a 30 AnalogIn DP_In(A3);
koosvanderwat 3:559e8c72212a 31
koosvanderwat 3:559e8c72212a 32 unsigned long previousMillis = 0; // will store last time LED was updated
koosvanderwat 3:559e8c72212a 33 long OnTime = 1000; // milliseconds of on-time
koosvanderwat 3:559e8c72212a 34 int secondscounter = 0;
koosvanderwat 3:559e8c72212a 35 int Counter = 0;
koosvanderwat 3:559e8c72212a 36 int sensorbroken =0;
koosvanderwat 3:559e8c72212a 37
koosvanderwat 3:559e8c72212a 38 int LHCT = PT + RT; // LH cycle time
koosvanderwat 3:559e8c72212a 39 int LHPT = PT + RT + PT; // LH purge time
koosvanderwat 3:559e8c72212a 40 int CT = PT + RT + PT + RT; // Cycle Time
koosvanderwat 3:559e8c72212a 41
koosvanderwat 3:559e8c72212a 42 float RHValue = 0;
koosvanderwat 3:559e8c72212a 43 float TempValue = 0;
koosvanderwat 3:559e8c72212a 44 float A = 0;
koosvanderwat 3:559e8c72212a 45 float DewPoint = 0;
koosvanderwat 3:559e8c72212a 46 float Value1 = 0;
koosvanderwat 3:559e8c72212a 47 float Value2 = 0;
koosvanderwat 3:559e8c72212a 48 float Value3 = 0;
koosvanderwat 3:559e8c72212a 49
koosvanderwat 3:559e8c72212a 50 int Valuecounter = 0;
koosvanderwat 3:559e8c72212a 51
koosvanderwat 3:559e8c72212a 52 int main()
koosvanderwat 3:559e8c72212a 53 {
koosvanderwat 3:559e8c72212a 54
koosvanderwat 3:559e8c72212a 55 my_RHMV = 1;//0
koosvanderwat 3:559e8c72212a 56 my_LHMV = 0;//1
koosvanderwat 3:559e8c72212a 57 my_RHPV = 0;//1
koosvanderwat 3:559e8c72212a 58 my_LHPV = 0;//1
koosvanderwat 3:559e8c72212a 59 my_RHPV = 1;//0
koosvanderwat 3:559e8c72212a 60 my_LHPV = 0;//1
koosvanderwat 3:559e8c72212a 61 my_RV = 0;//1
koosvanderwat 3:559e8c72212a 62
koosvanderwat 3:559e8c72212a 63 wd.Configure(4.0);
koosvanderwat 3:559e8c72212a 64
koosvanderwat 3:559e8c72212a 65 wait_ms(100);
koosvanderwat 3:559e8c72212a 66 lcd.printf("TegnonEfficiency\n");
koosvanderwat 3:559e8c72212a 67 lcd.locate(0,1);
koosvanderwat 3:559e8c72212a 68 lcd.printf(" DP Control \n");
koosvanderwat 3:559e8c72212a 69
koosvanderwat 3:559e8c72212a 70 wait_ms(1000);
koosvanderwat 3:559e8c72212a 71 lcd.cls();
koosvanderwat 3:559e8c72212a 72 lcd.printf("Dew Point:");
koosvanderwat 3:559e8c72212a 73 lcd.locate(0,1);
koosvanderwat 3:559e8c72212a 74 lcd.printf("Set Point:");
koosvanderwat 3:559e8c72212a 75
koosvanderwat 3:559e8c72212a 76 millisStart();
koosvanderwat 3:559e8c72212a 77
koosvanderwat 3:559e8c72212a 78 while(1) {
koosvanderwat 3:559e8c72212a 79 unsigned long currentMillis = millis(); // Get current time
koosvanderwat 3:559e8c72212a 80
koosvanderwat 3:559e8c72212a 81 if(my_Dip2 ==0) {
koosvanderwat 3:559e8c72212a 82 if(my_Dip1 ==0) {
koosvanderwat 3:559e8c72212a 83 SetPoint = -3;
koosvanderwat 3:559e8c72212a 84 }
koosvanderwat 3:559e8c72212a 85 if(my_Dip1 ==1) {
koosvanderwat 3:559e8c72212a 86 SetPoint = -20;
koosvanderwat 3:559e8c72212a 87 }
koosvanderwat 3:559e8c72212a 88 }
koosvanderwat 3:559e8c72212a 89 if(my_Dip2 ==1) {
koosvanderwat 3:559e8c72212a 90 if(my_Dip1 ==0) {
koosvanderwat 3:559e8c72212a 91 SetPoint = -40;
koosvanderwat 3:559e8c72212a 92 }
koosvanderwat 3:559e8c72212a 93 if(my_Dip1 ==1) {
koosvanderwat 3:559e8c72212a 94 SetPoint = -60;
koosvanderwat 3:559e8c72212a 95 }
koosvanderwat 3:559e8c72212a 96 }
simon 0:334327d1a416 97
koosvanderwat 3:559e8c72212a 98 if ((currentMillis - previousMillis) >= OnTime) {
koosvanderwat 3:559e8c72212a 99 previousMillis = currentMillis;
koosvanderwat 3:559e8c72212a 100 wd.Service();
koosvanderwat 3:559e8c72212a 101 my_led = !my_led;
koosvanderwat 3:559e8c72212a 102
koosvanderwat 3:559e8c72212a 103 secondscounter = secondscounter + 1;
koosvanderwat 3:559e8c72212a 104 Counter = Counter + 1;
koosvanderwat 3:559e8c72212a 105
koosvanderwat 3:559e8c72212a 106 if(Counter == 10) {
koosvanderwat 3:559e8c72212a 107 lcd.cls();
koosvanderwat 3:559e8c72212a 108 lcd.printf("Dew Point:");
koosvanderwat 3:559e8c72212a 109 lcd.locate(0,1);
koosvanderwat 3:559e8c72212a 110 lcd.printf("Set Point:");
koosvanderwat 3:559e8c72212a 111 Counter = 0;
koosvanderwat 3:559e8c72212a 112 }
koosvanderwat 3:559e8c72212a 113
koosvanderwat 3:559e8c72212a 114
koosvanderwat 3:559e8c72212a 115 if(Valuecounter ==0) {
koosvanderwat 3:559e8c72212a 116 Value1 = DP_In.read()*100 - 80;
koosvanderwat 3:559e8c72212a 117 }
koosvanderwat 3:559e8c72212a 118 if(Valuecounter ==1) {
koosvanderwat 3:559e8c72212a 119 Value2 = DP_In.read()*100 - 80;
koosvanderwat 3:559e8c72212a 120 }
koosvanderwat 3:559e8c72212a 121 if(Valuecounter ==2) {
koosvanderwat 3:559e8c72212a 122 Value3 = DP_In.read()*100 - 80;
koosvanderwat 3:559e8c72212a 123 Valuecounter=0;
koosvanderwat 3:559e8c72212a 124 }
koosvanderwat 3:559e8c72212a 125
koosvanderwat 3:559e8c72212a 126 Valuecounter = Valuecounter + 1;
koosvanderwat 3:559e8c72212a 127
koosvanderwat 3:559e8c72212a 128 DewPoint = (Value1+Value2+Value3)/3;
koosvanderwat 3:559e8c72212a 129
koosvanderwat 3:559e8c72212a 130 //DewPoint = DP_In.read()*100.0f;
koosvanderwat 3:559e8c72212a 131
koosvanderwat 3:559e8c72212a 132 lcd.locate(10,0);
koosvanderwat 3:559e8c72212a 133 lcd.printf(" ");
koosvanderwat 3:559e8c72212a 134 lcd.locate(10,0);
koosvanderwat 3:559e8c72212a 135 lcd.printf("%3.1f%", DewPoint);
koosvanderwat 3:559e8c72212a 136 lcd.locate(10,1);
koosvanderwat 3:559e8c72212a 137 lcd.printf(" ");
koosvanderwat 3:559e8c72212a 138 lcd.locate(10,1);
koosvanderwat 3:559e8c72212a 139 lcd.printf("%3.1f%", SetPoint);
koosvanderwat 3:559e8c72212a 140
koosvanderwat 3:559e8c72212a 141
koosvanderwat 3:559e8c72212a 142 if ((DewPoint < SetPoint) && (secondscounter == LHCT)) {
koosvanderwat 3:559e8c72212a 143 secondscounter = secondscounter - 1;
koosvanderwat 3:559e8c72212a 144 }
koosvanderwat 3:559e8c72212a 145
koosvanderwat 3:559e8c72212a 146 if ((DewPoint < SetPoint) && (secondscounter == CT)) {
koosvanderwat 3:559e8c72212a 147 secondscounter = secondscounter - 1;
koosvanderwat 3:559e8c72212a 148 }
koosvanderwat 3:559e8c72212a 149
koosvanderwat 3:559e8c72212a 150 //} else {
koosvanderwat 3:559e8c72212a 151 // lcd.locate(0,0);
koosvanderwat 3:559e8c72212a 152 // lcd.printf(" Standard ");
koosvanderwat 3:559e8c72212a 153 // lcd.locate(0,1);
koosvanderwat 3:559e8c72212a 154 // lcd.printf(" Cycle ");
koosvanderwat 3:559e8c72212a 155 //}
koosvanderwat 3:559e8c72212a 156 }
koosvanderwat 3:559e8c72212a 157
koosvanderwat 3:559e8c72212a 158 if (secondscounter < PT) {
koosvanderwat 3:559e8c72212a 159 my_RHMV = 1;//0
koosvanderwat 3:559e8c72212a 160 my_LHMV = 0;//1
koosvanderwat 3:559e8c72212a 161 my_RHPV = 1;//0
koosvanderwat 3:559e8c72212a 162 my_LHPV = 0;//1
koosvanderwat 3:559e8c72212a 163 my_RV = 0;//1
koosvanderwat 3:559e8c72212a 164 }
koosvanderwat 3:559e8c72212a 165 if (secondscounter >= PT && secondscounter < LHCT) {
koosvanderwat 3:559e8c72212a 166 my_RHMV = 1;//0
koosvanderwat 3:559e8c72212a 167 my_LHMV = 0;//1
koosvanderwat 3:559e8c72212a 168 my_RHPV = 0;//1
koosvanderwat 3:559e8c72212a 169 my_LHPV = 0;//1
koosvanderwat 3:559e8c72212a 170 my_RV = 1;//0
koosvanderwat 3:559e8c72212a 171
koosvanderwat 3:559e8c72212a 172 }
koosvanderwat 3:559e8c72212a 173
koosvanderwat 3:559e8c72212a 174 if ((secondscounter > LHCT) && (secondscounter < LHPT)) {
koosvanderwat 3:559e8c72212a 175 my_RHMV = 0;//1
koosvanderwat 3:559e8c72212a 176 my_LHMV = 1;//0
koosvanderwat 3:559e8c72212a 177 my_RHPV = 0;//1
koosvanderwat 3:559e8c72212a 178 my_LHPV = 1;//0
koosvanderwat 3:559e8c72212a 179 my_RV = 0;//1
koosvanderwat 3:559e8c72212a 180 }
koosvanderwat 3:559e8c72212a 181 if (secondscounter >= LHPT && (secondscounter < CT)) {
koosvanderwat 3:559e8c72212a 182 my_RHMV = 0;//1
koosvanderwat 3:559e8c72212a 183 my_LHMV = 1;//0
koosvanderwat 3:559e8c72212a 184 my_RHPV = 0;//1
koosvanderwat 3:559e8c72212a 185 my_LHPV = 0;//1
koosvanderwat 3:559e8c72212a 186 my_RV = 1;//0
koosvanderwat 3:559e8c72212a 187 }
koosvanderwat 3:559e8c72212a 188
koosvanderwat 3:559e8c72212a 189 if (secondscounter == (CT + 1)) {
koosvanderwat 3:559e8c72212a 190 secondscounter = 0;
koosvanderwat 3:559e8c72212a 191 }
koosvanderwat 3:559e8c72212a 192 } // While(1)
koosvanderwat 3:559e8c72212a 193 } //Void Main