Philip Thompson
Level 2 Project Range Device
Dependencies: N5110 SDFileSystem SRF02 TMP102 mbed
Diff: main.cpp
- Revision:
- 11:b64d123b9f4f
- Parent:
- 10:c9f3c22368f1
- Child:
- 12:0171e8723d9d
--- a/main.cpp Wed May 04 22:16:06 2016 +0000
+++ b/main.cpp Thu May 05 10:51:19 2016 +0000
@@ -5,22 +5,16 @@
*/
#include "main.h"
-#include "SDFileSystem.h"
-Serial serial(USBTX, USBRX); // for PC debug
int main()
{
- int d = 0;
- int myarray[5] {999,999,999,999,999}; /// initilised to any possitive integer to prevent random values at start up triggering an alert
setup();
lcd.init(); // Initiate LCD
- lcd.printString("ELEC 2645",0,0);
- lcd.printString("Project Ranger",0,1);
- lcd.printString("Phil Thompson",0,2);
- lcd.printString("SID 200971914 ",0,3);
- wait (3);
+ int d = 0;
+ int myarray[5] {999,999,999,999,999}; /// initilised to any possitive integer to prevent random values at start up triggering an alert
+
+ // Load settings from SD Card\\\\\\\\\\
FILE *fp; // file pointer
- // Load settings
fp = fopen("/sd/settings.txt", "r");
if (fp == NULL) { // if it can't open the file then print error message
serial.printf("Error! Unable to open file!\n");
@@ -33,7 +27,19 @@
serial.printf("Done.\n");
fclose(fp); // ensure you close the file after reading
}
- lcd.setBrightness(bright);
+ //\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
+
+ //Startup Screen\\\\\\\\\\\\\\\\\\\\
+ lcd.printString("ELEC 2645",0,0);
+ lcd.printString("Project Ranger",0,1);
+ lcd.printString("Phil Thompson",0,2);
+ lcd.printString("SID 200971914 ",0,3);
+ wait (3);
+ //\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
+
+ lcd.setBrightness(bright); //Set brightness of screen on startup from loaded value from SD Card
+
+ // Main while loop of the Ranger
while(1) {
if (g_sw1_flag) { /// Event triggered inturupt to call the menu and reset page numbers
g_sw1_flag = 0;
@@ -44,15 +50,18 @@
}
if (g_timer_flag_srf02) {
g_timer_flag_srf02 = 0; // if it has, clear the flag
- if (units == 1) {
+ if (units == 1) { // if units = 1 metric measurment are retrived from SFR02
distance = srf02.getDistanceCm();
distance = distance-(offset*c);
- } else {
+ } else { //If units = 0 imperial measurments retrived from SFR02
distance = srf02.getDistannceInch();
- distance = distance -(offset*c); //MAYBE MOVE C TO OFSET SETTING
- }// close else breaket
+ distance = distance -(offset*c);
+ } // close else breaket
} // close if inteurrupt bracket
+
+//Function to average last 5 readings\\\\\\\\\\\\\\\\
+
if (d == 4) {
d = 0;
} else {
@@ -65,44 +74,65 @@
}
avgdistance = (totaldistance/5);
- // serial.printf("TOATAL DISTANCE %i\n", totaldistance);
- // serial.printf("DISTANCE %i\n", distance);
- // serial.printf("AVERAGE DISTANCE %f\n", avgdistance);
- // serial.printf("ARRAY ELEMENT = %i\n", d);
- // serial.printf("myarray %i\n", myarray[d]);
+/*
+ Debugging\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
+ Uncomment to use button 2 to toggle thru alert levels for debugging and comment out setalert();
+ serial.printf("TOATAL DISTANCE %i\n", totaldistance);
+ serial.printf("DISTANCE %i\n", distance);
+ serial.printf("AVERAGE DISTANCE %f\n", avgdistance);
+ serial.printf("ARRAY ELEMENT = %i\n", d);
+ serial.printf("myarray %i\n", myarray[d]);
+ if (g_sw2_flag) { /// Event triggered inturupt to call the menu and reset page numbers
+ g_sw2_flag = 0;
+ if (alert ==8) {
+ alert =0;
+ } else {
+ alert++;
+ }
+ serial.printf("ALERT LEVEL %i\n", alert);
+ }
+*/
- /* uncomment to use button 2 to toggle thru alert levels for debugging and comment out setalert();
- if (g_sw2_flag) { /// Event triggered inturupt to call the menu and reset page numbers
- g_sw2_flag = 0;
- if (alert ==8) {
- alert =0;
- } else {
- alert++;
- }
- serial.printf("ALERT LEVEL %i\n", alert);
- }*/
setalert();
//serial.printf("ALERT LEVEL %i\n", alert);
lcdoutput();
- if (alert !=0) {
- if (buzz_flag == 0) {
+
+ if (alert !=0) { // no buzzer needed at alert == 0 path clear
+ if (buzz_flag == 0) {// flag keeps buzz from being called durig it's off period
setbuzzer();
}
}
- setleds();
- sleep();
+ setleds(); // Function called to set LED outputs
+ sleep(); // Sleep till nest interupt
}
}
-void lcdoutput()
+void setalert()
{
- /**
- Function called to print to the LCD display
- @param i used to scale the max distaance to the width of the screen
- @param distance Distance read from sensor to be dispayed
- @param distbar used to adjust how far along the screen the bar is to go acorrding to distance
- */
-
+ if (avgdistance >= (r6*c) && avgdistance < (r7*c)) { // r6 150 and r7 200
+ alert = 1; /// alert 1 avgdistance between preset 150Cm to 200Cm
+ } else if (avgdistance >= (r5*c) && avgdistance < (r6*c)) {
+ alert = 2; /// alert 2 when between preset 90Cm to 150Cm
+ } else if (avgdistance >= (r4*c) && avgdistance < (r5*c)) {
+ alert = 3; /// alert 3 when avgdistance between 60Cm to 90Cm
+ } else if (avgdistance >= (r3*c) && avgdistance < (r4*c)) {
+ alert = 4; /// alert 4 when avgdistance between 40Cm and 60Cm
+ } else if (avgdistance >= (r2*c) && avgdistance < (r3*c)) {
+ alert = 5; ///alert 5 when avgdistance between 20Cm and 40m
+ } else if (avgdistance >= (r1*c) && avgdistance <= (r2*c)) { //r1 3 and r2 20
+ alert = 6; ///alert 6 when avgdistance between 1 and 20
+ } else if (avgdistance <=(r1*c)) {
+ alert = 7; ///alert 7 when avgdistance below 1Cm
+ if (check_flag ==0) {
+ save();
+ }
+ check_flag = 1;
+ } else {
+ alert = 0; /// alert 0 all else
+ }
+}
+void lcdoutput()
+{
// if alert == 0 no need to display range path is clear
if (alert == 0) {
lcd.clear();
@@ -183,33 +213,10 @@
}
}//close function
-void setalert()
-{
- if (avgdistance >= (r6*c) && avgdistance < (r7*c)) { // r6 150 and r7 200
- alert = 1; /// alert 1 avgdistance between preset 150Cm to 200Cm
- } else if (avgdistance >= (r5*c) && avgdistance < (r6*c)) {
- alert = 2; /// alert 2 when between preset 90Cm to 150Cm
- } else if (avgdistance >= (r4*c) && avgdistance < (r5*c)) {
- alert = 3; /// alert 3 when avgdistance between 60Cm to 90Cm
- } else if (avgdistance >= (r3*c) && avgdistance < (r4*c)) {
- alert = 4; /// alert 4 when avgdistance between 40Cm and 60Cm
- } else if (avgdistance >= (r2*c) && avgdistance < (r3*c)) {
- alert = 5; ///alert 5 when avgdistance between 20Cm and 40m
- } else if (avgdistance >= (r1*c) && avgdistance <= (r2*c)) { //r1 3 and r2 20
- alert = 6; ///alert 6 when avgdistance between 1 and 20
- } else if (avgdistance <=(r1*c)) {
- alert = 7; ///alert 7 when avgdistance below 1Cm
- if (check_flag ==0) {
- save();
- }
- check_flag = 1;
- } else {
- alert = 0; /// alert 0 all else
- }
-}
void setleds()
{
+ int flash = 0; ///Variable to toggle LEDs high low
if (g_timer_flag_led) {
g_timer_flag_led = 0;
flash = !flash; // if it has, clear the flag
@@ -267,38 +274,12 @@
lcd.setBrightness(bright);
}
-void sw2_isr()
-{
- g_sw2_flag = 1; /** set flag in ISR by button 2 @param g_sw2_flag 0 or 1*/
-}
-
-void sw1_isr()
-{
- g_sw1_flag = 1; /** set flag in ISR by button 2 @param g_sw1_flag 0 or 1*/
-}
-
-void timer_isr_led()
-{
- g_timer_flag_led = 1; /** set flag in ISR by timer_isr_led @param g_timer_flag_led 0 or 1 */
-}
-
-void timer_isr_srf02()
-{
- g_timer_flag_srf02 = 1; /** set flag in ISR by ticker_srf02 @param g_timer_flag_srf02 0 or 1 */
-}
-
-void timer_isr_standby()
-{
- g_timer_flag_standby = 1; /** set flag in ISR by ticker_tone @param g_timer_flag_tone 0 or 1 */
-}
-
-
void menu()
{
while(1) {
if (g_sw1_flag) {
g_sw1_flag = 0;
- page++; /// Moves page
+ page++; // Moves page
lcd.clear();
}
switch (page) {
@@ -375,13 +356,13 @@
bright = 1.0;
offset = 0;
units = 1;
- r1 = 03;/// Upper limit of alert 1
- r2 = 10;/// Upper limit of alert 2
- r3 = 20;/// Upper limit of alert 3
- r4 = 35;/// Upper limit of alert 4
- r5 = 50;/// Upper limit of alert 5
- r6 = 65;/// Upper limit of alert 6
- r7 = 80;/// Upper limit of alert 7
+ r1 = 03;// Upper limit of alert 1
+ r2 = 10;// Upper limit of alert 2
+ r3 = 20;// Upper limit of alert 3
+ r4 = 30;// Upper limit of alert 4
+ r5 = 50;// Upper limit of alert 5
+ r6 = 60;// Upper limit of alert 6
+ r7 = 80;// Upper limit of alert 7
lcd.clear();
lcd.printString("SETTINGS",0,1);
lcd.printString("RESET",0,2);
@@ -415,21 +396,6 @@
}//while braket
}//functon bracket
-
-void save()
-{
- fp = fopen("/sd/settings.txt", "w");
- if (fp == NULL) { // if it can't open the file then print error message
- serial.printf("Error! Unable to open file!\n");
- } else { // opened file so can write
- serial.printf("Writing to file....");
- fprintf(fp, "%f,%i,%i,%i,%i,%i,%i,%i,%i,%i,%i",bright,units,offset,check_flag,r1,r2,r3,r4,r5,r6,r7); // ensure data type matches
- serial.printf("Done.\n");
- fclose(fp); // ensure you close the file after writing
- }
-}
-
-
void submenu()
{
while(1) {
@@ -443,7 +409,7 @@
if (g_sw2_flag) {
g_sw2_flag = 0; // if it has, clear the flag
if (r2 == r3) {
- r2 = 1;
+ r2 = 3;
} else {
r2 = r2+1;
}
@@ -496,7 +462,7 @@
r5 += 1;
}
}
- sprintf(buffer4,"%iCm to %iCm",r4,r5);
+ sprintf(buffer4,"%iCm to %iCm",r4,r5);
lcd.printString("*****MENU*****",0,0);
lcd.printString("RANGE",0,1);
lcd.printString("PARAMETERS",0,2);
@@ -542,11 +508,24 @@
}//while bracket
}//function bracket
+void save()
+{
+ fp = fopen("/sd/settings.txt", "w");
+ if (fp == NULL) { // if it can't open the file then print error message
+ serial.printf("Error! Unable to open file!\n");
+ } else { // opened file so can write
+ serial.printf("Writing to file....");
+ fprintf(fp, "%f,%i,%i,%i,%i,%i,%i,%i,%i,%i,%i",bright,units,offset,check_flag,r1,r2,r3,r4,r5,r6,r7); // ensure data type matches
+ serial.printf("Done.\n");
+ fclose(fp); // ensure you close the file after writing
+ }
+}
+
void setup()
{
serial.baud(115200); // full-speed!
ticker.attach(&timer_isr_led,0.35); /// Attach the ticker for the flashig LEDs
- ticker_srf02.attach(&timer_isr_srf02,0.1);/// Attach the ticker for collecting a range reading
+ ticker_srf02.attach(&timer_isr_srf02,0.2);/// Attach the ticker for collecting a range reading
ticker_standby.attach(&timer_isr_standby,5.0);
sw1.rise(&sw1_isr); /// sw1_isr called when button presed on the rising edge
sw2.rise(&sw2_isr); /// sw2_isr called when button presed on the rising edge
@@ -558,4 +537,29 @@
gg_led = 0; //PCB LEDS
sw2.mode(PullDown); //Turns on use of the pulldown resistors for use with the PCB buttons
sw1.mode(PullDown); //Turns on use of the pulldown resistors for use with the PCB buttons
-}
\ No newline at end of file
+}
+
+void sw2_isr()
+{
+ g_sw2_flag = 1; /** set flag in ISR by button 2 @param g_sw2_flag 0 or 1*/
+}
+
+void sw1_isr()
+{
+ g_sw1_flag = 1; /** set flag in ISR by button 2 @param g_sw1_flag 0 or 1*/
+}
+
+void timer_isr_led()
+{
+ g_timer_flag_led = 1; /** set flag in ISR by timer_isr_led @param g_timer_flag_led 0 or 1 */
+}
+
+void timer_isr_srf02()
+{
+ g_timer_flag_srf02 = 1; /** set flag in ISR by ticker_srf02 @param g_timer_flag_srf02 0 or 1 */
+}
+
+void timer_isr_standby()
+{
+ g_timer_flag_standby = 1; /** set flag in ISR by ticker_tone @param g_timer_flag_tone 0 or 1 */
+}