(DA) Internet of Things and Smart Electronics- ELE3006M2122
Addition of FSM to try and set initial starting temperature for use throughout project. Additional menu option. Joystick input 'bouncing' during FSM use - to be debugged
Dependencies: mbed N5110v02 TMP102 JoystickIoT
Diff: main.cpp
- Revision:
- 9:d71b92c916f8
- Parent:
- 8:07323fcab6d1
- Child:
- 10:357b3329620f
diff -r 07323fcab6d1 -r d71b92c916f8 main.cpp
--- a/main.cpp Sun Jan 16 22:46:29 2022 +0000
+++ b/main.cpp Wed Jan 19 07:34:20 2022 +0000
@@ -1,12 +1,10 @@
/*
* @ File main.cpp
* @ Author - David Leaming - 25574043
-* @ Date - December 2021
-*
+* @ Date - January 2022
* Acknowledgements
* Craig A. Evans, University of Leeds, TMP102 Library ,Feb 2016
* Dr Edmond Nurellari, University of Lincoln, Joystick & N5110 Libraries
-*
*/
#include "mbed.h" // include the library header, ensure the library has been imported into the project
@@ -57,11 +55,11 @@
void init_serial(); // setup serial port
void init_K64F(); // set-up the on-board LEDs and switches
void init_PCB(); // set-up the PCB LEDs and buttons
-void ButtonA_isr(); //
-void ButtonB_isr(); //
-void ButtonBack_isr(); //
-void sw2_isr(); //
-void menu_timer_isr(); //
+void ButtonA_isr(); //
+void ButtonB_isr(); //
+void ButtonBack_isr(); //
+void sw2_isr(); //
+void menu_timer_isr(); //
void OnStartup(); //
void Run(); //
void ConstantMonitoring(); //
@@ -84,9 +82,8 @@
lcd.setContrast(0.5); // change set contrast in range 0.0 to 1.0
- OnStartup(); //
- Run(); //
-
+ OnStartup(); // Call intro screen
+ Run(); // Call main-menu and functions
}
void init_serial() {
@@ -101,21 +98,21 @@
sw2.mode(PullNone); // since the on-board switches have external pull-ups, we should disable the internal pull-down
sw3.mode(PullNone); // resistors that are enabled by default using InterruptIn
-
}
void init_PCB ()
{
LED01 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
- LED02 = 1;
- LED03 = 1;
- LED04 = 1;
- LED05 = 1;
- LED06 = 1;
+ LED02 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
+ LED03 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
+ LED04 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
+ LED05 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
+ LED06 = 1; // PCB surface mounted LED's are active low - write a 1 to turn them off initiallly
+
+ Buzzer = 0; // Ensure Piezo Buzzer is off
ButtonA.mode(PullDown); // Set pin to Pull Down to OV, meaning that a rising edge is looked for when button is pressed
ButtonB.mode(PullDown); // Set pin to Pull Down to OV, meaning that a rising edge is looked for when button is pressed
-
}
void ButtonA_isr() // ButtonA event-triggered interrupt
@@ -143,56 +140,67 @@
g_menu_timer_flag = 1; // set flag in ISR
}
-void OnStartup() //Run some start up display
+void OnStartup() // Run some start up display
{
- lcd.clear(); // clear buffer at start of every loop
- lcd.printString("--------------",0,0); // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
+ Buzzer.period(1.0/659.0); // Welcome sounds from Piezo
+ Buzzer = 0.5; //
+ wait(0.5); //
+ Buzzer.period(1.0/494.0); //
+ Buzzer = 0.5; //
+ wait(0.5); //
+ Buzzer.period(1.0/554.0); //
+ Buzzer = 0.5; //
+ wait(0.5); //
+ Buzzer = 0; // Turn off welcome sounds
+ lcd.clear(); // Clear buffer at start of every loop
+ lcd.printString("--------------",0,0); // Can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
lcd.printString(" Smart Cold",0,1); // Just a welcome message before auto moving to main menu
lcd.printString(" Storage",0,2); //
lcd.printString(" Monitoring",0,3); //
lcd.printString("V09 - Jan 2022",0,4); //
lcd.printString("--------------",0,5); //
- lcd.refresh(); // need to refresh display after setting pixels or writing strings
- wait(5.0); // leave welcome screen on for designated amount of time
- lcd.clear(); // clear buffer at start of every loop
- lcd.refresh(); // need to refresh display after setting pixels or writing strings
+ lcd.refresh(); // Need to refresh display after setting pixels or writing strings
+ wait(5.0); // Leave welcome screen on for designated amount of time
+ lcd.clear(); // Clear buffer at start of every loop
+ lcd.refresh(); // Need to refresh display after setting pixels or writing strings
lcd.printString("--------------",0,0); //
lcd.printString(" Use Joystick",0,1); // Instruction for use of menu
lcd.printString(" To Navigate",0,2); //
lcd.printString("",0,3); // Blank Line
lcd.printString(" A = Select",0,4); //
lcd.printString("--------------",0,5); //
- lcd.refresh(); // need to refresh display after setting pixels or writing strings
+ lcd.refresh(); // Need to refresh display after setting pixels or writing strings
wait(5.0); //
+ init_PCB(); // Ran again to ensure all LED's etc are turned off
}
-enum EMenuState //An enum controlling the current state of the display.
+enum EMenuState // An enum controlling the current state of the display.
{
- MENUSTATE_Main,
- MENUSTATE_Monitor,
- MENUSTATE_OneOff,
- MENUSTATE_About,
- MENUSTATE_Author,
+ MENUSTATE_Main, // Defining each menu state to be called upon later
+ MENUSTATE_Monitor, // Defining each menu state to be called upon later
+ MENUSTATE_OneOff, // Defining each menu state to be called upon later
+ MENUSTATE_About, // Defining each menu state to be called upon later
+ MENUSTATE_Author, // Defining each menu state to be called upon later
MENUSTATTE_Num, // This is a special enum value that just gives is a way to get the number of elements in the enum.
};
void Run()
{
- int MenuState;
- int SelectedItem = 0;
- int NumMenuItems = 1;
+ int MenuState; //
+ int SelectedItem = 0; //
+ int NumMenuItems = 1; //
char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
while(1){
- if (g_menu_timer_flag){
- g_menu_timer_flag = 0;
+ if (g_menu_timer_flag){ //
+ g_menu_timer_flag = 0; //
bool bAButtonWasPressed = g_ButtonA_flag; // Get the value of the input flags and reset them
- bool bBButtonWasPressed = g_ButtonB_flag;
- g_ButtonA_flag = 0;
- g_ButtonB_flag = 0;
+ bool bBButtonWasPressed = g_ButtonB_flag; // Get the value of the input flags and reset them
+ g_ButtonA_flag = 0; //
+ g_ButtonB_flag = 0; //
lcd.clear(); // clear buffer at start of every loop
@@ -200,103 +208,124 @@
switch(MenuState) // Update and Draw whichever menu we're on.
{
- case MENUSTATE_Main:
+ case MENUSTATE_Main: //
{
NumMenuItems = 4; // Dont for get to set this when changing number of items in the menu. We need this to wrap the selection around properly etc.
- if(SelectedItem >= NumMenuItems)
+ if(SelectedItem >= NumMenuItems) //
{
SelectedItem = 0; // Something has gone wrong, reset selected item.
}
- lcd.printString("---- MENU ----",0,0);
- lcd.printString("M1 - Monitor",0,1);
- lcd.printString("M2 - One-off",0,2);
- lcd.printString("About",0,3);
- lcd.printString("Author",0,4);
+ lcd.printString("---- MENU ----",0,0); // Menu title and selectable options
+ lcd.printString("M1 - Monitor",0,1); // Printed to the LCD screen
+ lcd.printString("M2 - One-off",0,2); //
+ lcd.printString("About",0,3); //
+ lcd.printString("Author",0,4); //
if(bAButtonWasPressed) // If A was pressed then we transition to the selected screen.
{
if(SelectedItem == 0) // If 0 line is selected, move to detailed menu
{ // Actually 0 line + 1, see circle draw and selection below
- NewMenuState = MENUSTATE_Monitor;
+ NewMenuState = MENUSTATE_Monitor; //
}
else if(SelectedItem == 1) // If 1 line is selected, move to detailed menu
{ // Actually 1 line + 1, see circle draw and selection below
- NewMenuState = MENUSTATE_OneOff;
+ NewMenuState = MENUSTATE_OneOff; //
}
else if(SelectedItem == 2) // If 2 line is selected, move to detailed menu
{ // Actually 2 line + 1, see circle draw and selection below
- NewMenuState = MENUSTATE_About;
+ NewMenuState = MENUSTATE_About; //
}
else if(SelectedItem == 3) // If 3 line is selected, move to detailed menu
{ // Actually 3 line + 1, see circle draw and selection below
- NewMenuState = MENUSTATE_Author;
+ NewMenuState = MENUSTATE_Author; //
}
}
}
- break;
- case MENUSTATE_Monitor:
+ break; //
+ case MENUSTATE_Monitor: // Call constant measurement menu following top menu selection
{
NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
- if(SelectedItem >= NumMenuItems)
+ if(SelectedItem >= NumMenuItems) //
{
NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
}
float T = tmp102.get_temperature(); // read temperature and print to lcd
+ pc.printf("T = %f K\n",T); // Print to serial - allows testing without device attached
int length = sprintf(buffer," T = %.2f C",T); // print formatted data to buffer - it is important the format specifier ensures the length will fit in the buffer
if (length <= 14) // if string will fit on display (assuming printing at x=0)
- lcd.printString("-- Constant --",0,0);
- lcd.printString("- Monitoring -",0,1);
+ lcd.printString("-- Constant --",0,0); //
+ lcd.printString("- Monitoring -",0,1); //
lcd.printString(buffer,0,3); // display on screen
- lcd.printString(" 'A' to Menu",0,5);
+ lcd.printString(" 'A' to Menu",0,5); //
lcd.refresh(); // need to refresh display after setting pixels or writing strings
- wait(0.5);
+ wait(0.5); //
float high_temp = tmp102.get_temperature(); // read temperature
- if (high_temp >= 22) { // High temp alarm condition - in real world would be lot lower!!
- LED01 = 0; // Light LED01 if temperature is over specified
- LED02 = 0; // Light LED02 if temperature is over specified
- LED03 = 0; // Light LED03 if temperature is over specified
+ if (high_temp >= 25) { // High temp alarm condition - in real world would be lot lower!!
+ LED01 = 0; // Light LED01 if temperature is over specified - Simulated starting of cold blowers
+ LED02 = 0; // Light LED02 if temperature is over specified - Simulated starting of cold blowers
+ LED03 = 0; // Light LED03 if temperature is over specified - Simulated starting of cold blowers
}
else {
- LED01 = 1; // LED01 off if temperature is below specified
- LED02 = 1; // LED01 off if temperature is below specified
- LED03 = 1; // LED01 off if temperature is below specified
+ LED01 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers
+ LED02 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers
+ LED03 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers
+ Buzzer = 0; //
+ }
+
+ float low_temp = tmp102.get_temperature(); // Read temperature
+ if (low_temp <= 22) { // Low temp alarm condition - in real world would be lot lower!!
+ LED04 = 0; // Light LED04 if temperature is over specified - Simulated starting of heaters
+ LED05 = 0; // Light LED05 if temperature is over specified - Simulated starting of heaters
+ LED06 = 0; // Light LED06 if temperature is over specified - Simulated starting of heaters
+ }
+ else {
+ LED04 = 1; // LED04 off if temperature is above specified - Simulated stopping of heaters
+ LED05 = 1; // LED05 off if temperature is above specified - Simulated stopping of heaters
+ LED06 = 1; // LED06 off if temperature is above specified - Simulated stopping of heaters
}
- if(bAButtonWasPressed)
+ if(bAButtonWasPressed) // Check if button was pressed
{
- if(SelectedItem == 0)
+ if(SelectedItem == 0) //
{
- NewMenuState = MENUSTATE_Main;
+ NewMenuState = MENUSTATE_Main; // Transition back to the main menu
+ LED01 = 1; // Turn off LED upon transition back to main menu
+ LED02 = 1; // Turn off LED upon transition back to main menu
+ LED03 = 1; // Turn off LED upon transition back to main menu
+ LED04 = 1; // Turn off LED upon transition back to main menu
+ LED05 = 1; // Turn off LED upon transition back to main menu
+ LED06 = 1; // Turn off LED upon transition back to main menu
}
}
}
break;
- case MENUSTATE_OneOff:
+ case MENUSTATE_OneOff: // Call a one off measuremnt menu following top menu selection
{
NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
- if(SelectedItem >= NumMenuItems)
+ if(SelectedItem >= NumMenuItems) //
{
NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
}
float T = tmp102.get_temperature(); // read temperature and print to lcd
+ pc.printf("T = %f K\n",T); // Print to serial - allows testing without device attached
int length = sprintf(buffer," T = %.2f C",T); // print formatted data to buffer - it is important the format specifier ensures the length will fit in the buffer
if (length <= 14) // if string will fit on display (assuming printing at x=0)
- lcd.printString("-- One-Off --",0,0);
- lcd.printString("-- Measure --",0,1);
+ lcd.printString("-- One-Off --",0,0); //
+ lcd.printString("-- Measure --",0,1); //
lcd.printString(buffer,0,3); // display on screen
- lcd.printString(" 'A' to Menu",0,5);
+ lcd.printString(" 'A' to Menu",0,5); //
- if(bAButtonWasPressed)
+ if(bAButtonWasPressed) // Check if button was pressed
{
- if(SelectedItem == 0)
+ if(SelectedItem == 0) //
{
NewMenuState = MENUSTATE_Main; // Take us back to top menu
}
@@ -304,49 +333,49 @@
}
break;
- case MENUSTATE_About:
+ case MENUSTATE_About: // Call About menu following top menu selection
{
NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
- if(SelectedItem >= NumMenuItems)
+ if(SelectedItem >= NumMenuItems) //
{
NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
}
- lcd.printString("--- About ---",0,0);
- lcd.printString("ELE3006M - IoT",0,1);
- lcd.printString(" Project",0,2);
- lcd.printString("Uni of Lincoln",0,3);
- lcd.printString(" 'A' to Menu",0,5);
- lcd.refresh();
+ lcd.printString("--- About ---",0,0); //
+ lcd.printString("ELE3006M - IoT",0,1); //
+ lcd.printString(" Project",0,2); //
+ lcd.printString("Uni of Lincoln",0,3); //
+ lcd.printString(" 'A' to Menu",0,5); //
+ lcd.refresh(); //
- if(bAButtonWasPressed)
+ if(bAButtonWasPressed) // Check if button was pressed
{
- if(SelectedItem == 0)
+ if(SelectedItem == 0) //
{
- NewMenuState = MENUSTATE_Main;
+ NewMenuState = MENUSTATE_Main; // Transition back to Main Menu
}
}
}
break;
- case MENUSTATE_Author:
+ case MENUSTATE_Author: // Call Author menu following top menu selection
{
NumMenuItems = 1; // Detail the number of items in Menu - need this to wrap the selection around properly etc.
- if(SelectedItem >= NumMenuItems)
+ if(SelectedItem >= NumMenuItems) //
{
NewMenuState = MENUSTATE_Main; // Something has gone wrong, drop back to the main menu.
}
- lcd.printString("--- Author ---",0,0);
- lcd.printString("David Leaming ",0,1);
- lcd.printString(" 25574043 ",0,2);
- lcd.printString(" VolkerRail",0,3);
- lcd.printString(" 'A' to Menu",0,5);
+ lcd.printString("--- Author ---",0,0); //
+ lcd.printString("David Leaming ",0,1); //
+ lcd.printString(" 25574043 ",0,2); //
+ lcd.printString(" VolkerRail",0,3); //
+ lcd.printString(" 'A' to Menu",0,5); //
- if(bAButtonWasPressed)
+ if(bAButtonWasPressed) // Check if button was pressed
{
- if(SelectedItem == 0)
+ if(SelectedItem == 0) //
{
NewMenuState = MENUSTATE_Main; // Take us back to top menu
}
@@ -378,11 +407,11 @@
unsigned int SelectionMarkerRadius = 4 ; // Draw a marker circle at end of line to show which is the currently selected item.
unsigned int SelectionMarkerX = WIDTH - (2 * SelectionMarkerRadius);
unsigned int SelectionMarkerY = (HEIGHT / 5) * (SelectedItem + 1); // +1 because of the menu title being on first row
- lcd.drawCircle(SelectionMarkerX, SelectionMarkerY, SelectionMarkerRadius, FILL_BLACK);
+ lcd.drawCircle(SelectionMarkerX, SelectionMarkerY, SelectionMarkerRadius, FILL_BLACK); // Fill the circle black so it can be seen easily
// Handle Joystick Input
switch (joystick.get_direction()) { // Call to check direction joystick is pointing
- printf("Direction = %i\n"); //
+ printf("Direction = %i\n"); // Print direction to serial
case N: //
SelectedItem--; //
break; //
@@ -391,13 +420,13 @@
break; //
}
- if(SelectedItem < 0) //Wrap the selection around to the start/end of the menu if it goes below 0 or above NumMenuItems.
+ if(SelectedItem < 0) // Wrap the selection around to the start/end of the menu if it goes below 0 or above NumMenuItems.
{
- SelectedItem = NumMenuItems - 1;
+ SelectedItem = NumMenuItems - 1; //
}
- else if(SelectedItem >= NumMenuItems)
+ else if(SelectedItem >= NumMenuItems) //
{
- SelectedItem = 0;
+ SelectedItem = 0; //
}
}