(DA) Internet of Things and Smart Electronics- ELE3006M2122
Final tidy of code following installation of new sensor, more comments added prior to submission
Dependencies: mbed
Diff: main.cpp
- Revision:
- 13:5ad65a688f3f
- Parent:
- 12:5046b7515d5c
- Child:
- 14:3e9991fe64e5
diff -r 5046b7515d5c -r 5ad65a688f3f main.cpp
--- a/main.cpp Thu Jan 20 22:57:14 2022 +0000
+++ b/main.cpp Fri Jan 21 14:26:56 2022 +0000
@@ -1,10 +1,16 @@
/*
+* Prints a string of characters to the screen buffer, string is cut off after the 83rd pixel.
+* @param x - the column number (0 to 83)
+* @param y - the row number (0-5) - the display is split into 6 banks - each bank can be considered a row
+*
* @ File main.cpp
* @ Author - David Leaming - 25574043
* @ Date - January 2022
+*
* Acknowledgements
* Craig A. Evans, University of Leeds, TMP102 Library ,Feb 2016
* Dr Edmond Nurellari, University of Lincoln, Joystick & N5110 Libraries
+* Paul Staron, Piezo Buzzer utility, April 2019
*/
#include "mbed.h" // include the library header, ensure the library has been imported into the project
@@ -40,7 +46,7 @@
{22,0.5,{7,8,7,7,7,6,7,7,7}}, // State 7 - 22 Degrees
{23,0.5,{8,9,8,8,8,7,8,8,8}}, // State 8 - 23 Degrees
{24,0.5,{9,10,9,9,9,8,9,9,9}}, // State 9 - 24 Degrees
- {25,0.5,{10,1,10,10,10,9,10,10,10}} // State 10 - 25 Degrees
+ {25,0.5,{10,1,10,10,10,9,10,10,10}} // State 10 - 25 Degrees
};
Ticker ticker_menu; // Create Menu ticker object
@@ -179,7 +185,7 @@
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("V12 - Jan 2022",0,4); //
+ lcd.printString("V13 - 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
@@ -194,6 +200,7 @@
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
+ printf("Transition to Temp Selection %i\n",StartTemp); // Observe on serial port - ensure transition to correct screen
}
enum EMenuState // An enum controlling the current state of the display.
@@ -210,7 +217,7 @@
void Run()
{
- int MenuState; //
+ int MenuState = MENUSTATE_StartTemp; //
int SelectedItem = 0; //
int NumMenuItems = 1; //
@@ -228,17 +235,14 @@
lcd.clear(); // clear buffer at start of every loop
int NewMenuState = MENUSTATTE_Num; // The new menu we want to transition to, if any.
-
switch(MenuState) // Update and Draw whichever menu we're on.
{
case MENUSTATE_StartTemp: //
- {
-
+ {
NumMenuItems = 1; // 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) //
{
-
SelectedItem = 0; // Something has gone wrong, reset selected item.
}
Direction d = joystick.get_direction();
@@ -250,12 +254,13 @@
printf ("Joystick Direction Points = %i\n",d); //
printf ("State selected = %i\n", g_state); //
int length = sprintf(buffer," T = %.2f C",g_StartTemp); // 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("- Set Target -",0,0); //
- lcd.printString("---- Temp ----",0,1); //
- lcd.printString(buffer,0,3); // display on screen
- lcd.printString("'A' to Select",0,5); //
- lcd.refresh(); // need to refresh display after setting pixels or writing strings
+ if (length <= 14){ // if string will fit on display (assuming printing at x=0)
+ lcd.printString("- Set Target -",0,0); //
+ lcd.printString("---- Temp ----",0,1); //
+ lcd.printString(buffer,0,3); // display on screen
+ lcd.printString("'A' to Select",0,5); //
+ lcd.refresh();
+ } // need to refresh display after setting pixels or writing strings
if(bAButtonWasPressed) // If A was pressed then we transition to the selected screen.
{
@@ -268,11 +273,9 @@
break; //
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) //
{
-
SelectedItem = 0; // Something has gone wrong, reset selected item.
}
lcd.printString("---- MENU ----",0,0); // Menu title and selectable options
@@ -304,7 +307,6 @@
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) //
@@ -323,33 +325,39 @@
lcd.refresh(); // need to refresh display after setting pixels or writing strings
wait(0.5); //
- float high_temp = tmp102.get_temperature(); // read temperature
- if (high_temp >= g_StartTemp + 2) { // 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
- printf("WARNING - High Temp!! \n"); //
+ if (T >= g_StartTemp + 2) { // High temp alarm condition - in real world would be lot lower!!
+ LED01 = !LED01; // Flash LED01 if temperature is over specified - Simulated starting of cold blowers
+ LED02 = !LED02; // Flash LED02 if temperature is over specified - Simulated starting of cold blowers
+ LED03 = !LED03; // Flash LED03 if temperature is over specified - Simulated starting of cold blowers
+ printf("WARNING - High Temp!! \n"); //
+ Buzzer.period(1.0/554.0); // Warning Buzzer to extremely high
+ Buzzer = 0.5; //
+ wait(0.5); //
+ Buzzer = 0; //
}
- else {
+ else {
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; //
+ Buzzer = 0; // Buzzer off if temperature is below specified - Simulated stopping of cold blowers
}
- float low_temp = tmp102.get_temperature(); // Read temperature
- if (low_temp <= g_StartTemp - 2) { // 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
- printf("WARNING - Low Temp!! \n"); //
+ if (T <= g_StartTemp - 2) { // High temp alarm condition - in real world would be lot lower!!
+ LED04 = !LED04; // Flash LED01 if temperature is over specified - Simulated starting of cold blowers
+ LED05 = !LED05; // Flash LED02 if temperature is over specified - Simulated starting of cold blowers
+ LED06 = !LED06; // Flash LED03 if temperature is over specified - Simulated starting of cold blowers
+ printf("WARNING - Low Temp!! \n"); //
+ Buzzer.period(1.0/554.0); // Warning Buzzer to extremely high
+ Buzzer = 0.5; //
+ wait(0.5); //
+ Buzzer = 0; //
}
- 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
+ else {
+ LED04 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers
+ LED05 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers
+ LED06 = 1; // LED01 off if temperature is below specified - Simulated stopping of cold blowers
+ Buzzer = 0; // Buzzer off if temperature is below specified - Simulated stopping of cold blowers
}
-
if(bAButtonWasPressed) // Check if button was pressed
{
if(SelectedItem == 0) //
@@ -367,7 +375,6 @@
break;
case MENUSTATE_OneOff: // Call a one off 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) //
{
@@ -377,11 +384,12 @@
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(buffer,0,3); // display on screen
- lcd.printString(" 'A' to Menu",0,5); //
+ 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(buffer,0,3); // display on screen
+ lcd.printString(" 'A' to Menu",0,5); //
+ }
if(bAButtonWasPressed) // Check if button was pressed
{
@@ -395,7 +403,6 @@
break;
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) //
{
@@ -462,21 +469,26 @@
}
else
{
-
-
- unsigned int SelectionMarkerRadius = 4; // If we have not selected to move to a new menu.
- unsigned int SelectionMarkerX = WIDTH - (2 * SelectionMarkerRadius); // Draw a marker circle at end of line to show which is the currently selected item.
- unsigned int SelectionMarkerY = (HEIGHT / 5) * (SelectedItem + 1); // +1 because of the menu title being on first row
- lcd.drawCircle(SelectionMarkerX, SelectionMarkerY, SelectionMarkerRadius, FILL_BLACK); // Fill the circle black so it can be seen easily
+ unsigned int SelectionMarkerRadius = 4; // If we have not selected to move to a new menu.
+ unsigned int SelectionMarkerX = WIDTH - (2 * SelectionMarkerRadius); // Draw a marker circle at end of line to show which is the currently selected item.
+ unsigned int SelectionMarkerY = (HEIGHT / 5) * (SelectedItem + 1); // +1 because of the menu title being on first row
+ 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"); // Print direction to serial
- case N: //
- SelectedItem--; //
+ Direction d = joystick.get_direction();
+ printf("Direction = %i\n");
+ switch (joystick.get_direction()) { // Call to check direction joystick is pointing
+ case N:
+ {
+ SelectedItem--;
+ printf("Selection decremented to %i\n", SelectedItem);
+ }
break; //
- case S: //
- SelectedItem++; //
+ case S:
+ {
+ SelectedItem++;
+ printf("Selection incremented to %i\n", SelectedItem);
+ }
break; //
}
@@ -503,3 +515,5 @@
wait(fsm[g_state].time); // wait in that state for desired time
g_state = fsm[g_state].nextState[d]; // read input and update curent state
}
+
+