John Karatka / Test_Environment

Personal Test Environment

Dependencies:   LCD_DISCO_F746NG TS_DISCO_F746NG mbed

TempSense.h@0:bab80a319f0d, 2018-03-06 (annotated)

Committer:
DirtyGray
Date:
Tue Mar 06 18:24:17 2018 +0000
Revision:
0:bab80a319f0d
main.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DirtyGray 0:bab80a319f0d 1 #include "mbed.h"
DirtyGray 0:bab80a319f0d 2
DirtyGray 0:bab80a319f0d 3 //---------------------------------------------------------
DirtyGray 0:bab80a319f0d 4 //Enter amount of minutes between each log
DirtyGray 0:bab80a319f0d 5 int minutesPerLog = 15;
DirtyGray 0:bab80a319f0d 6
DirtyGray 0:bab80a319f0d 7 //Enter amount of seconds for the log screen to show
DirtyGray 0:bab80a319f0d 8 int logTimer = 20;
DirtyGray 0:bab80a319f0d 9 //---------------------------------------------------------
DirtyGray 0:bab80a319f0d 10
DirtyGray 0:bab80a319f0d 11 //I2C pins
DirtyGray 0:bab80a319f0d 12 I2C i2c(PB_9, PB_8); //SDA, SCL | D14 , D15
DirtyGray 0:bab80a319f0d 13
DirtyGray 0:bab80a319f0d 14 int getTemp(void);
DirtyGray 0:bab80a319f0d 15 void displayLog(int *);
DirtyGray 0:bab80a319f0d 16 void initScreen(void);
DirtyGray 0:bab80a319f0d 17
DirtyGray 0:bab80a319f0d 18 LCD_DISCO_F746NG LCDscreen;
DirtyGray 0:bab80a319f0d 19 TS_StateTypeDef touchStatus;
DirtyGray 0:bab80a319f0d 20 TS_DISCO_F746NG LCDtouchScreen;
DirtyGray 0:bab80a319f0d 21
DirtyGray 0:bab80a319f0d 22 /**
DirtyGray 0:bab80a319f0d 23 * @brief Displays the temperature
DirtyGray 0:bab80a319f0d 24 * @retval None
DirtyGray 0:bab80a319f0d 25 */
DirtyGray 0:bab80a319f0d 26 void tempDisplay(void)
DirtyGray 0:bab80a319f0d 27 {
DirtyGray 0:bab80a319f0d 28 //If the log is recording every 0 minutes do not show log
DirtyGray 0:bab80a319f0d 29 if (minutesPerLog == 0) {
DirtyGray 0:bab80a319f0d 30 return;
DirtyGray 0:bab80a319f0d 31 }
DirtyGray 0:bab80a319f0d 32
DirtyGray 0:bab80a319f0d 33 initScreen();
DirtyGray 0:bab80a319f0d 34 i2c.frequency(100000);
DirtyGray 0:bab80a319f0d 35
DirtyGray 0:bab80a319f0d 36 int counter = 0;
DirtyGray 0:bab80a319f0d 37 unsigned short StringX = 0;
DirtyGray 0:bab80a319f0d 38 unsigned short StringY = 250;
DirtyGray 0:bab80a319f0d 39 unsigned char helpDisplay[100] = {"Hold screen for Log"};
DirtyGray 0:bab80a319f0d 40 unsigned char tempDisplay[100];
DirtyGray 0:bab80a319f0d 41 int tempLog[10] = {0};
DirtyGray 0:bab80a319f0d 42
DirtyGray 0:bab80a319f0d 43 //Reset screen after log display
DirtyGray 0:bab80a319f0d 44 back:
DirtyGray 0:bab80a319f0d 45 LCDscreen.Clear(LCD_COLOR_BLUE);
DirtyGray 0:bab80a319f0d 46 LCDscreen.DisplayStringAt(0, 0, helpDisplay, LEFT_MODE);
DirtyGray 0:bab80a319f0d 47
DirtyGray 0:bab80a319f0d 48 //Main loop
DirtyGray 0:bab80a319f0d 49 while(1) {
DirtyGray 0:bab80a319f0d 50 counter++;
DirtyGray 0:bab80a319f0d 51 //Grabs temp and puts it into display portion of log [0], also adds one
DirtyGray 0:bab80a319f0d 52 //second delay
DirtyGray 0:bab80a319f0d 53 int temp = getTemp();
DirtyGray 0:bab80a319f0d 54 tempLog[0] = temp;
DirtyGray 0:bab80a319f0d 55
DirtyGray 0:bab80a319f0d 56 //Checks to see if time has been met for a log update
DirtyGray 0:bab80a319f0d 57 if (counter >= (minutesPerLog * 60)) {
DirtyGray 0:bab80a319f0d 58 for (int i = 9; i > 0; i--) {
DirtyGray 0:bab80a319f0d 59 tempLog[i] = tempLog[i - 1];
DirtyGray 0:bab80a319f0d 60 }
DirtyGray 0:bab80a319f0d 61 counter = 0;
DirtyGray 0:bab80a319f0d 62 }
DirtyGray 0:bab80a319f0d 63
DirtyGray 0:bab80a319f0d 64 //Displays the current temperature
DirtyGray 0:bab80a319f0d 65 if (temp < 100) {
DirtyGray 0:bab80a319f0d 66 sprintf((char*)tempDisplay, "Current Temperature = %dF", temp);
DirtyGray 0:bab80a319f0d 67 } else if (temp >= 100) {
DirtyGray 0:bab80a319f0d 68 sprintf((char*)tempDisplay, "Current Temperature =%dF", temp);
DirtyGray 0:bab80a319f0d 69 }
DirtyGray 0:bab80a319f0d 70 LCDscreen.DisplayStringAt(StringX, StringY, tempDisplay, LEFT_MODE);
DirtyGray 0:bab80a319f0d 71
DirtyGray 0:bab80a319f0d 72 //Checks for touch to display log
DirtyGray 0:bab80a319f0d 73 LCDtouchScreen.GetState(&touchStatus);
DirtyGray 0:bab80a319f0d 74 if (touchStatus.touchDetected) {
DirtyGray 0:bab80a319f0d 75 displayLog(tempLog);
DirtyGray 0:bab80a319f0d 76 counter = counter + logTimer;
DirtyGray 0:bab80a319f0d 77 goto back;
DirtyGray 0:bab80a319f0d 78 }
DirtyGray 0:bab80a319f0d 79 }
DirtyGray 0:bab80a319f0d 80 }
DirtyGray 0:bab80a319f0d 81
DirtyGray 0:bab80a319f0d 82 /**
DirtyGray 0:bab80a319f0d 83 * @brief Retrieves temperature from chip
DirtyGray 0:bab80a319f0d 84 * @retval Temperature
DirtyGray 0:bab80a319f0d 85 */
DirtyGray 0:bab80a319f0d 86 int getTemp(void)
DirtyGray 0:bab80a319f0d 87 {
DirtyGray 0:bab80a319f0d 88 char tempData[2];
DirtyGray 0:bab80a319f0d 89 char getTemp[1] = {0xAA};
DirtyGray 0:bab80a319f0d 90 char stopConvert[1] = {0x22};
DirtyGray 0:bab80a319f0d 91 char startConvert[1] = {0xEE};
DirtyGray 0:bab80a319f0d 92 int temp;
DirtyGray 0:bab80a319f0d 93
DirtyGray 0:bab80a319f0d 94 //Grabs the temperature from the DS1621, converts to F and returns value
DirtyGray 0:bab80a319f0d 95 //Convert tells the DS1621 to update its temperature reading
DirtyGray 0:bab80a319f0d 96 //Read and Write have different addresses because I2C communication address
DirtyGray 0:bab80a319f0d 97 //uses a 1 for write and a 0 for read at end of binary address
DirtyGray 0:bab80a319f0d 98 i2c.write(145, startConvert, 1, false);
DirtyGray 0:bab80a319f0d 99 wait(1);
DirtyGray 0:bab80a319f0d 100 i2c.write(145, stopConvert, 1, false);
DirtyGray 0:bab80a319f0d 101 i2c.write(145, getTemp, 1, false);
DirtyGray 0:bab80a319f0d 102 i2c.read(144, tempData, 1);
DirtyGray 0:bab80a319f0d 103 temp = (tempData[0] * 1.8) + 32;
DirtyGray 0:bab80a319f0d 104 return (temp);
DirtyGray 0:bab80a319f0d 105 }
DirtyGray 0:bab80a319f0d 106
DirtyGray 0:bab80a319f0d 107 /**
DirtyGray 0:bab80a319f0d 108 * @brief Displays the temperature log
DirtyGray 0:bab80a319f0d 109 * @param tempLog[10]: Array of temperature logs
DirtyGray 0:bab80a319f0d 110 * @retval None
DirtyGray 0:bab80a319f0d 111 */
DirtyGray 0:bab80a319f0d 112 void displayLog(int tempLog[10])
DirtyGray 0:bab80a319f0d 113 {
DirtyGray 0:bab80a319f0d 114 LCDscreen.SetBackColor(LCD_COLOR_BLUE);
DirtyGray 0:bab80a319f0d 115 LCDscreen.SetTextColor(LCD_COLOR_WHITE);
DirtyGray 0:bab80a319f0d 116
DirtyGray 0:bab80a319f0d 117 unsigned char logDisplay[500];
DirtyGray 0:bab80a319f0d 118 unsigned char helpDisplay2[100];
DirtyGray 0:bab80a319f0d 119
DirtyGray 0:bab80a319f0d 120 sprintf((char*)helpDisplay2, "Log is updated every %d minutes", minutesPerLog);
DirtyGray 0:bab80a319f0d 121
DirtyGray 0:bab80a319f0d 122 //Displays 10 logs, the first log is the current temperature. If the time
DirtyGray 0:bab80a319f0d 123 //of one log is divisible by 60 it will note that log as being one hour ago
DirtyGray 0:bab80a319f0d 124 //Each log is added to the master string "logDisplay"
DirtyGray 0:bab80a319f0d 125 LCDscreen.Clear(LCD_COLOR_BLUE);
DirtyGray 0:bab80a319f0d 126 sprintf((char*)logDisplay, "Log:");
DirtyGray 0:bab80a319f0d 127 LCDscreen.DisplayStringAt(0, 0, logDisplay, LEFT_MODE);
DirtyGray 0:bab80a319f0d 128 for (int i = 0; i < 10; i++) {
DirtyGray 0:bab80a319f0d 129 if (i == 0) {
DirtyGray 0:bab80a319f0d 130 sprintf((char*)logDisplay, "%dF - Current Temperature", tempLog[i]);
DirtyGray 0:bab80a319f0d 131 } else if (i == (60 / minutesPerLog)) {
DirtyGray 0:bab80a319f0d 132 sprintf((char*)logDisplay, "%d: %dF - One Hour Ago", i, tempLog[i]);
DirtyGray 0:bab80a319f0d 133 } else {
DirtyGray 0:bab80a319f0d 134 sprintf((char*)logDisplay, "%d: %dF", i, tempLog[i]);
DirtyGray 0:bab80a319f0d 135 }
DirtyGray 0:bab80a319f0d 136 LCDscreen.DisplayStringAt(0, (i + 1) * 20, logDisplay, LEFT_MODE);
DirtyGray 0:bab80a319f0d 137 }
DirtyGray 0:bab80a319f0d 138 LCDscreen.SetFont(&Font20);
DirtyGray 0:bab80a319f0d 139 LCDscreen.DisplayStringAt(0, 240, helpDisplay2, LEFT_MODE);
DirtyGray 0:bab80a319f0d 140 LCDscreen.SetFont(&Font24);
DirtyGray 0:bab80a319f0d 141
DirtyGray 0:bab80a319f0d 142 wait(logTimer);
DirtyGray 0:bab80a319f0d 143 }
DirtyGray 0:bab80a319f0d 144
DirtyGray 0:bab80a319f0d 145 /**
DirtyGray 0:bab80a319f0d 146 * @brief Initializes display
DirtyGray 0:bab80a319f0d 147 * @retval None
DirtyGray 0:bab80a319f0d 148 */
DirtyGray 0:bab80a319f0d 149 void initScreen(void)
DirtyGray 0:bab80a319f0d 150 {
DirtyGray 0:bab80a319f0d 151 LCDscreen.Clear(LCD_COLOR_WHITE);
DirtyGray 0:bab80a319f0d 152 LCDscreen.SetBackColor(LCD_COLOR_BLUE);
DirtyGray 0:bab80a319f0d 153 LCDscreen.SetTextColor(LCD_COLOR_WHITE);
DirtyGray 0:bab80a319f0d 154 LCDscreen.SetFont(&Font24);
DirtyGray 0:bab80a319f0d 155 LCDscreen.Clear(LCD_COLOR_BLUE);
DirtyGray 0:bab80a319f0d 156 }