Minsuk Chun / Mbed 2 deprecated SousVide

Using mbed for sous vide

Dependencies:   4DGL-uLCD-SE DS1820 PinDetect Speaker mbed

Fork of DS18B20 by Niall Cooling

main.cpp@1:2d86c674a78b, 2016-12-04 (annotated)

Committer:
Mcplokqaws
Date:
Sun Dec 04 23:10:56 2016 +0000
Revision:
1:2d86c674a78b
Parent:
0:03ec282c2908 
Sous Vide

Who changed what in which revision?

UserRevisionLine numberNew contents of line
feabhas 0:03ec282c2908 1 #include "mbed.h"
Mcplokqaws 1:2d86c674a78b 2 #include "uLCD_4DGL.h"
Mcplokqaws 1:2d86c674a78b 3 #include "Speaker.h"
Mcplokqaws 1:2d86c674a78b 4 #include "DS1820.h"
Mcplokqaws 1:2d86c674a78b 5 #include "PinDetect.h"
Mcplokqaws 1:2d86c674a78b 6 #include <time.h>
Mcplokqaws 1:2d86c674a78b 7
Mcplokqaws 1:2d86c674a78b 8 //Program by: Tianhang Ren, Minsuk Chun, Richard Lee
Mcplokqaws 1:2d86c674a78b 9
Mcplokqaws 1:2d86c674a78b 10 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 11 //Initialize
Mcplokqaws 1:2d86c674a78b 12 ///////////////////////////////////////////////////////
feabhas 0:03ec282c2908 13
Mcplokqaws 1:2d86c674a78b 14 DS1820 probe(p5);
Mcplokqaws 1:2d86c674a78b 15 PinDetect pbUp(p18); // Buttons to raise/lower/enter temperature
Mcplokqaws 1:2d86c674a78b 16 PinDetect pbDown(p19);
Mcplokqaws 1:2d86c674a78b 17 PinDetect pbEnter (p20);
Mcplokqaws 1:2d86c674a78b 18 Serial pc(USBTX, USBRX); // serial comms over usb back to console
Mcplokqaws 1:2d86c674a78b 19 //Timer T;
Mcplokqaws 1:2d86c674a78b 20 DigitalOut myled1(LED1); // On when relay is engaged
Mcplokqaws 1:2d86c674a78b 21 DigitalOut myled2(LED2);
Mcplokqaws 1:2d86c674a78b 22 DigitalOut myled3(LED3);
Mcplokqaws 1:2d86c674a78b 23 DigitalOut myled4(LED4);
Mcplokqaws 1:2d86c674a78b 24 uLCD_4DGL uLCD(p28, p27, p29); // create a global uLCD object
feabhas 0:03ec282c2908 25
Mcplokqaws 1:2d86c674a78b 26 DigitalOut ctrl(p8); //relay control
Mcplokqaws 1:2d86c674a78b 27
Mcplokqaws 1:2d86c674a78b 28 // setup instance of new Speaker class, mySpeaker using pin 21
Mcplokqaws 1:2d86c674a78b 29 // the pin must be a PWM output pin
Mcplokqaws 1:2d86c674a78b 30 Speaker mySpeaker(p26);
Mcplokqaws 1:2d86c674a78b 31
Mcplokqaws 1:2d86c674a78b 32 float userTemp = 0; //user desired temperature of device
Mcplokqaws 1:2d86c674a78b 33 int check = 0; //indicates whether enter key is pressed
Mcplokqaws 1:2d86c674a78b 34 float timeCook = 0;
Mcplokqaws 1:2d86c674a78b 35
feabhas 0:03ec282c2908 36
Mcplokqaws 1:2d86c674a78b 37 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 38 // Initialize pushbuttons
Mcplokqaws 1:2d86c674a78b 39 ///////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 40
Mcplokqaws 1:2d86c674a78b 41
Mcplokqaws 1:2d86c674a78b 42 // Callback routine is interrupt activated by a debounced pb1 hit
Mcplokqaws 1:2d86c674a78b 43 void pbUp_hit_callback (void)
Mcplokqaws 1:2d86c674a78b 44 {
Mcplokqaws 1:2d86c674a78b 45 // CODE HERE WILL RUN WHEN INTERUPT IS GENERATED
Mcplokqaws 1:2d86c674a78b 46 myled1 = !myled1;
Mcplokqaws 1:2d86c674a78b 47 mySpeaker.PlayNote(200.0,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 48 userTemp++;
Mcplokqaws 1:2d86c674a78b 49 timeCook +=5; //TODO CHANGE TIME BACK TO 10 INTERVALS
Mcplokqaws 1:2d86c674a78b 50 }
Mcplokqaws 1:2d86c674a78b 51
Mcplokqaws 1:2d86c674a78b 52 // Callback routine is interrupt activated by a debounced pb2 hit
Mcplokqaws 1:2d86c674a78b 53 void pbDown_hit_callback (void)
Mcplokqaws 1:2d86c674a78b 54 {
Mcplokqaws 1:2d86c674a78b 55 // CODE HERE WILL RUN WHEN INTERUPT IS GENERATED
Mcplokqaws 1:2d86c674a78b 56 myled2 = !myled2;
Mcplokqaws 1:2d86c674a78b 57 mySpeaker.PlayNote(400.0,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 58 userTemp--;
Mcplokqaws 1:2d86c674a78b 59 if (userTemp <=0) {
Mcplokqaws 1:2d86c674a78b 60 userTemp = 0;
feabhas 0:03ec282c2908 61 }
Mcplokqaws 1:2d86c674a78b 62 timeCook-=5;
Mcplokqaws 1:2d86c674a78b 63 if (timeCook <=0)
Mcplokqaws 1:2d86c674a78b 64 timeCook=0;
Mcplokqaws 1:2d86c674a78b 65 }
Mcplokqaws 1:2d86c674a78b 66 // Callback routine is interrupt activated by a debounced pb3 hit
Mcplokqaws 1:2d86c674a78b 67 void pbEnter_hit_callback (void)
Mcplokqaws 1:2d86c674a78b 68 {
Mcplokqaws 1:2d86c674a78b 69 // CODE HERE WILL RUN WHEN INTERUPT IS GENERATED
Mcplokqaws 1:2d86c674a78b 70 myled3 = !myled3;
Mcplokqaws 1:2d86c674a78b 71 mySpeaker.PlayNote(800.0,0.10,0.1);
Mcplokqaws 1:2d86c674a78b 72 mySpeaker.PlayNote(1000.0,0.10,0.1);
Mcplokqaws 1:2d86c674a78b 73 mySpeaker.PlayNote(1200.0,0.10,0.1);
Mcplokqaws 1:2d86c674a78b 74 check++;
feabhas 0:03ec282c2908 75 }
feabhas 0:03ec282c2908 76
Mcplokqaws 1:2d86c674a78b 77 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 78 // Main method starts here
Mcplokqaws 1:2d86c674a78b 79 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 80
Mcplokqaws 1:2d86c674a78b 81 int main()
Mcplokqaws 1:2d86c674a78b 82 {
Mcplokqaws 1:2d86c674a78b 83 //setup three SPST push buttons
Mcplokqaws 1:2d86c674a78b 84 pbUp.mode(PullUp); //add internal pullup resistor
Mcplokqaws 1:2d86c674a78b 85 pbDown.mode(PullUp);
Mcplokqaws 1:2d86c674a78b 86 pbEnter.mode(PullUp);
Mcplokqaws 1:2d86c674a78b 87
Mcplokqaws 1:2d86c674a78b 88 // Delay for initial pullup to take effect
Mcplokqaws 1:2d86c674a78b 89 wait(.01);
Mcplokqaws 1:2d86c674a78b 90
Mcplokqaws 1:2d86c674a78b 91 // Setup Interrupt callback functions for a pb hit
Mcplokqaws 1:2d86c674a78b 92 pbUp.attach_deasserted(&pbUp_hit_callback);
Mcplokqaws 1:2d86c674a78b 93 pbDown.attach_deasserted(&pbDown_hit_callback);
Mcplokqaws 1:2d86c674a78b 94 pbEnter.attach_deasserted(&pbEnter_hit_callback);
Mcplokqaws 1:2d86c674a78b 95
Mcplokqaws 1:2d86c674a78b 96 // Start sampling pb inputs using interrupts
Mcplokqaws 1:2d86c674a78b 97 pbUp.setSampleFrequency();
Mcplokqaws 1:2d86c674a78b 98 pbDown.setSampleFrequency();
Mcplokqaws 1:2d86c674a78b 99 pbEnter.setSampleFrequency();
Mcplokqaws 1:2d86c674a78b 100
Mcplokqaws 1:2d86c674a78b 101 // pushbuttons now setup and running
Mcplokqaws 1:2d86c674a78b 102
Mcplokqaws 1:2d86c674a78b 103 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 104 // Ask for temperature and time desired
Mcplokqaws 1:2d86c674a78b 105 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 106
Mcplokqaws 1:2d86c674a78b 107 uLCD.printf("Enter desired temperature"); //Ask for desired temperature
Mcplokqaws 1:2d86c674a78b 108 while(check ==0) { //if check flag is 0, means enter has not been pushed
Mcplokqaws 1:2d86c674a78b 109 if (pbUp) {
Mcplokqaws 1:2d86c674a78b 110 uLCD.locate(0,3);
Mcplokqaws 1:2d86c674a78b 111 uLCD.printf("%4.0f", userTemp);
Mcplokqaws 1:2d86c674a78b 112 }
Mcplokqaws 1:2d86c674a78b 113 if (pbDown) {
Mcplokqaws 1:2d86c674a78b 114 uLCD.locate(0,3);
Mcplokqaws 1:2d86c674a78b 115 uLCD.printf("%4.0f", userTemp);
Mcplokqaws 1:2d86c674a78b 116 }
Mcplokqaws 1:2d86c674a78b 117 }
Mcplokqaws 1:2d86c674a78b 118
Mcplokqaws 1:2d86c674a78b 119 float finalTemp = userTemp; //reassign to final temp
Mcplokqaws 1:2d86c674a78b 120 check = 0;
Mcplokqaws 1:2d86c674a78b 121 uLCD.cls();
Mcplokqaws 1:2d86c674a78b 122 uLCD.locate(0,0);
Mcplokqaws 1:2d86c674a78b 123 timeCook = 0; //reset timeCook
Mcplokqaws 1:2d86c674a78b 124 uLCD.printf("Enter cooking time"); //Cooking time in minutes
Mcplokqaws 1:2d86c674a78b 125 while (check == 0) {
Mcplokqaws 1:2d86c674a78b 126 if (pbUp) {
Mcplokqaws 1:2d86c674a78b 127 uLCD.locate(0,3);
Mcplokqaws 1:2d86c674a78b 128 uLCD.printf("%4.0f", timeCook);
Mcplokqaws 1:2d86c674a78b 129 }
Mcplokqaws 1:2d86c674a78b 130 if (pbDown) {
Mcplokqaws 1:2d86c674a78b 131 uLCD.locate(0,3);
Mcplokqaws 1:2d86c674a78b 132 uLCD.printf("%4.0f", timeCook);
Mcplokqaws 1:2d86c674a78b 133 }
Mcplokqaws 1:2d86c674a78b 134 }
Mcplokqaws 1:2d86c674a78b 135 float finalTime = timeCook *60; //reassign to final time
Mcplokqaws 1:2d86c674a78b 136 ctrl = 1; // Turn on relay
Mcplokqaws 1:2d86c674a78b 137 float tempLimit = 0; //intitialize variable to track temperature
Mcplokqaws 1:2d86c674a78b 138 uLCD.locate(0,0);
Mcplokqaws 1:2d86c674a78b 139 uLCD.printf("Set Temp (C)", finalTemp); //print set temperature
Mcplokqaws 1:2d86c674a78b 140 while (tempLimit < (finalTemp + 1)) { //Loop while temperature is 1 degrees over destination
Mcplokqaws 1:2d86c674a78b 141 probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
Mcplokqaws 1:2d86c674a78b 142 tempLimit = probe.temperature();
Mcplokqaws 1:2d86c674a78b 143 uLCD.locate(0,3);
Mcplokqaws 1:2d86c674a78b 144 uLCD.printf("It is %3.1foC\r", probe.temperature());
Mcplokqaws 1:2d86c674a78b 145 wait(1);
Mcplokqaws 1:2d86c674a78b 146 }
Mcplokqaws 1:2d86c674a78b 147 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 148 // Start cooking with finalized temperatures and time
Mcplokqaws 1:2d86c674a78b 149 ////////////////////////////////////////////////////////
Mcplokqaws 1:2d86c674a78b 150
Mcplokqaws 1:2d86c674a78b 151 //PLAY SOUND FROM SPEAKER
Mcplokqaws 1:2d86c674a78b 152 /* T.start(); //Timer start (s)*/
Mcplokqaws 1:2d86c674a78b 153 float time_remaining = 1;
Mcplokqaws 1:2d86c674a78b 154 ctrl = 0;
Mcplokqaws 1:2d86c674a78b 155 uLCD.cls();
Mcplokqaws 1:2d86c674a78b 156 uLCD.locate(0,0);
Mcplokqaws 1:2d86c674a78b 157 uLCD.printf("Set Temperature %4.0foC\r", finalTemp);
Mcplokqaws 1:2d86c674a78b 158 set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37
Mcplokqaws 1:2d86c674a78b 159 // time_t seconds = time(NULL);
Mcplokqaws 1:2d86c674a78b 160
Mcplokqaws 1:2d86c674a78b 161 while(time_remaining > 0) { //Loop while timer has not reached desired time
Mcplokqaws 1:2d86c674a78b 162 if (tempLimit < (finalTemp - 1)) { //If temperature is 2 degrees C lower than desired, turn relay on
Mcplokqaws 1:2d86c674a78b 163 ctrl = 1;
Mcplokqaws 1:2d86c674a78b 164 } else if (tempLimit >= finalTemp) {
Mcplokqaws 1:2d86c674a78b 165 ctrl = 0;
Mcplokqaws 1:2d86c674a78b 166 }
Mcplokqaws 1:2d86c674a78b 167 tempLimit = probe.temperature();
Mcplokqaws 1:2d86c674a78b 168 probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
Mcplokqaws 1:2d86c674a78b 169 uLCD.locate(0,3);
Mcplokqaws 1:2d86c674a78b 170 uLCD.printf("It is %3.1foC\r", probe.temperature());
Mcplokqaws 1:2d86c674a78b 171 uLCD.locate(0,5);
Mcplokqaws 1:2d86c674a78b 172 time_t seconds = time(NULL); //Cycle RTC
Mcplokqaws 1:2d86c674a78b 173 time_remaining = finalTime - (seconds - 1256729737);
Mcplokqaws 1:2d86c674a78b 174
Mcplokqaws 1:2d86c674a78b 175 if ((time_remaining/3600) >= 1 )
Mcplokqaws 1:2d86c674a78b 176 uLCD.printf("Time remaining: \n%4.0f hours", time_remaining/3600);
Mcplokqaws 1:2d86c674a78b 177 else if ((time_remaining/60) >= 1)
Mcplokqaws 1:2d86c674a78b 178 uLCD.printf("Time remaining: %4.0f minutes", time_remaining/60);
Mcplokqaws 1:2d86c674a78b 179 else
Mcplokqaws 1:2d86c674a78b 180 uLCD.printf("Time remaining: %4.0f seconds", time_remaining);
Mcplokqaws 1:2d86c674a78b 181 }
Mcplokqaws 1:2d86c674a78b 182
Mcplokqaws 1:2d86c674a78b 183 ctrl = 0;
Mcplokqaws 1:2d86c674a78b 184
Mcplokqaws 1:2d86c674a78b 185 //PLAY SOUND FROM SPEAKER
Mcplokqaws 1:2d86c674a78b 186 mySpeaker.PlayNote(1567.98,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 187 mySpeaker.PlayNote(1046.50,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 188 mySpeaker.PlayNote(1174.66,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 189 mySpeaker.PlayNote(1318.51,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 190 mySpeaker.PlayNote(1396.91,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 191 mySpeaker.PlayNote(1567.98,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 192 mySpeaker.PlayNote(1046.50,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 193 mySpeaker.PlayNote(1046.50,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 194 mySpeaker.PlayNote(1760.00,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 195 mySpeaker.PlayNote(1396.91,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 196 mySpeaker.PlayNote(1567.98,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 197 mySpeaker.PlayNote(1760.00,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 198 mySpeaker.PlayNote(1975.53,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 199 mySpeaker.PlayNote(2093.00,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 200 mySpeaker.PlayNote(1046.50,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 201 mySpeaker.PlayNote(1046.50,0.25,0.1);
Mcplokqaws 1:2d86c674a78b 202
Mcplokqaws 1:2d86c674a78b 203 uLCD.cls();
Mcplokqaws 1:2d86c674a78b 204 uLCD.locate(0,0);
Mcplokqaws 1:2d86c674a78b 205 uLCD.printf("Food is ready");
Mcplokqaws 1:2d86c674a78b 206 }
Mcplokqaws 1:2d86c674a78b 207