ELEC2645 (2015/16)
Level 2 Project Range Device
Dependencies: N5110 SDFileSystem SRF02 TMP102 mbed
Fork of
Ranger
by 
Philip Thompson
Revision 7:14cfb0df30e6, committed 2016-04-25
- Comitter:
- el15pjt
- Date:
- Mon Apr 25 10:08:05 2016 +0000
- Parent:
- 6:b464a8a94d91
- Child:
- 8:fe6ebe807b9d
- Commit message:
- BUZZER TO IMPLEMENT AND AVERAGE;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Mon Apr 25 10:08:05 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/mbed/code/SDFileSystem/#7b35d1709458
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TMP102.lib Mon Apr 25 10:08:05 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/eencae/code/TMP102/#1b601445b336
--- a/main.cpp Fri Apr 15 17:23:17 2016 +0000
+++ b/main.cpp Mon Apr 25 10:08:05 2016 +0000
@@ -1,114 +1,67 @@
-/*
-Philip Thompsonn
-EL15PJT
-Embedded System Project
-EL2645
+
+/**
+@file main.cpp
+@brief Program implementation
*/
-#include "mbed.h"
-#include "SRF02.h"
-#include "N5110.h"
-
-#define LOW 0
-#define HIGH 1
-#define METRIC 1
-#define IMPERIAL 0
-
-DigitalOut rr_led (PTA1);
-DigitalOut a_led (PTC2);
-DigitalOut gg_led(PTB23);
-PwmOut buzzer(PTA2);
-
-// Ranger object
-SRF02 srf02(I2C_SDA,I2C_SCL);
-
-//N5110 Object VCC, SCE,RST, D/C, MOSI,SCLK, LED
-N5110 lcd(PTE26,PTA0,PTC4,PTD0,PTD2,PTD1,PTC3);
-
-Ticker ticker;
-Ticker ticker_srf02;
-Ticker ticker_tone;
-Timeout buzzoff;
-
-// K64F on-board LEDs
-DigitalOut r_led(LED_RED);
-DigitalOut g_led(LED_GREEN);
-DigitalOut b_led(LED_BLUE);
-
-// K64F on-board switches
-InterruptIn sw1(SW2);
-InterruptIn sw2(SW3);
-
-volatile int g_timer_flag_led = 0;
-volatile int g_timer_flag_srf02 = 0;
-volatile int g_timer_flag_tone = 0;
-volatile int g_sw1_flag = 0;
-volatile int g_sw2_flag = 0;
-
-int r1 = 3;
-int r2 = 20;
-int r3 = 40;
-int r4 = 60;
-int r5 = 80;
-int r6 = 100;
-int r7 = 120;
-
-int subpage;
-int page;
-int offset = 0;
-int alert;
-int distance;
-float bright = 1;
-char units = METRIC;
-
-// struct for state
-struct Alertlevel {
- char srr_led; // output value
- char sa_led; // time in state
- char sgg_led; // array of next states
- char frr_led;
- char fa_led;
- char fgg_led;
- float toneon;
- float toneoff;
-};
-typedef const struct Alertlevel STyp;
-
-STyp Alertlevel[8] = {
- {LOW,LOW,LOW,LOW,LOW,LOW,0,1}, // no output
- {LOW,LOW,LOW,LOW,LOW,HIGH,0.05,1}, //flash green
- {LOW,LOW,HIGH,LOW,LOW,LOW,0.1,1}, //steady green
- {LOW,LOW,HIGH,LOW,HIGH,LOW,0.2,0.5}, //flash amber
- {LOW,HIGH,HIGH,LOW,LOW,LOW,0.55,0.25}, //steady amber
- {LOW,HIGH,HIGH,HIGH,LOW,LOW,0.8,0.1}, //flash red
- {HIGH,HIGH,HIGH,LOW,LOW,LOW,1,1.05},// steady red
- {LOW,LOW,LOW,HIGH,HIGH,HIGH,1,0.05} // all flash
-};
-void lcdoutput();
-void timer_isr_led(); // timed interuprt
-void timer_isr_srf02();
-void timer_isr_tone();
-void backlight();
-void init_K64F(); // set up board
-void sw2_isr();
-void sw1_isr();
-void setalert();
-void setleds();
-void setbuzzer();
-void nobuzz();
-void menu();
-void submenu();
+#include "main.h"
+#include "SDFileSystem.h"
+Serial serial(USBTX, USBRX); // for PC debug
int main()
{
- lcd.init();
- init_K64F();
- ticker.attach(&timer_isr_led,0.35);
- ticker_srf02.attach(&timer_isr_srf02,0.02);
- ticker_tone.attach(&timer_isr_tone,Alertlevel[alert].toneoff);
- sw1.fall(&sw1_isr);
- sw2.fall(&sw2_isr);
+ setup();
+ lcd.init(); // Initiate LCD
+ /*
+ sprintf(buffer,"ELEC 2645");
+ sprintf(buffer1,"Project Ranger");
+ sprintf(buffer2,"Phil Thompson");
+ sprintf(buffer3,"SID 200971914 ");
+ lcd.printString(buffer,0,0);
+ lcd.printString(buffer1,0,1);
+ lcd.printString(buffer2,0,2);
+ lcd.printString(buffer3,0,3);
+ wait (3);
+ */
+ /*
+ serial.baud(115200); // full-speed!
+ serial.printf("#### SD Card Example #####\n");
+ FILE *fp; // this is our file pointer
+ wait(1);
+ {
+ /////////////////////// Reading from file example ////////////////////////
+
+ // now open file for reading...note the 'r'
+ 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");
+ } else {
+ serial.printf("Reading file....\n");
+ int r1;
+ int r2;
+ int r3;
+ int r4;
+ int r5;
+ int r6;
+ int r7;
+ int offset; // create suitable variables to store the data in the file
+ float bright;
+ float value;
+ int i;
+
+ // in this example, we keep reading (using fscanf) until we reach
+ // the 'end of file'. Note we use the address operator & to write
+ // to the variables. Also the format of the string must match what
+ // is in the file
+ while (fscanf(fp, "%d,%f", &i, &value) != EOF) {
+ serial.printf("%d,%f\n",i,value);
+ }
+ serial.printf("Done.\n");
+ fclose(fp); // ensure you close the file after reading
+ }
+ }
+ */
while(1) {
if (g_sw1_flag) {
@@ -123,71 +76,122 @@
g_timer_flag_srf02 = 0; // if it has, clear the flag
if (units == METRIC) {
distance = srf02.getDistanceCm();
+ distance = distance-(offset*c);
} else {
distance = srf02.getDistannceInch();
+ distance = distance -(offset*c);
}
- distance = distance-offset;
+
+
+
+
+
+
+
+
+ if (d == 9) {
+ d = 0;
+ } else {
+ d++;
+ }
+ myarray[d] = distance;
+ totaldistance = 0;
+ for (i = 0; i < 10; i++) {
+ totaldistance = totaldistance+myarray[i];
+ }
+ avgdistance = totaldistance;
}
+
+
+
+
+
+
+
+
setalert();
lcdoutput();
- // setbuzzer();
+ setbuzzer();
setleds();
sleep();
}
}
-//Set up board switches and LEDS
-void init_K64F()
-{
-//on-board LEDs are active-low, so set pin high to turn them off.
- r_led = 1;
- g_led = 1;
- b_led = 1;
-// since the on-board switches have external pull-ups, we should disable the internal pull-down
-// resistors that are enabled by default using InterruptIn
- sw2.mode(PullNone);
- sw1.mode(PullNone);
-}
-
void lcdoutput()
{
- int length;
- int length1;
- char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- char buffer1[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- int length2;
- char buffer2[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- int length3;
- char buffer3[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+ /**
+ 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 alert == 0 no need to display range path is clear
if (alert == 0) {
+ if (g_timer_flag_standby) {
+ g_timer_flag_standby = 0;
+ T = tmp102.get_temperature();
+ standby++;
+ if (standby >3) {
+ standby = 3;
+ }
+ }
+
+ switch (standby) {
+ case 1:
+ lcd.clear();
+ sprintf(buffer,"**PATH CLEAR**");
+ lcd.printString(buffer,0,0);
+ lcd.refresh();
+ break;
+ case 2:
+ lcd.clear();
+ sprintf(buffer3,"TEMP = %.2f",T);
+ sprintf(buffer2,"TEMPERATER");
+ lcd.printString(buffer3,4,3);
+ lcd.printString(buffer2,12,2);
+ break;
+ case 3:
+ lcd.clear();
+ sprintf(buffer3,"TEMP = %.2f",T);
+ sprintf(buffer2,"TEMPERATER");
+ lcd.refresh();
+ lcd.printString(buffer3,4,3);
+ lcd.printString(buffer2,12,2);
+ lcd.setBrightness(0);
+ break;
+ }
+ }
+
+ //If alert isn't 0 then the distance is to be dispayed alonng with the the distance bar
+ else {
+ lcd.setBrightness(bright);
+ standby =0;
lcd.clear();
- length1 = sprintf(buffer1,"**PATH CLEAR**",bright);
- lcd.printString(buffer1,0,0);
- lcd.refresh();
-
- }
+ if (units == METRIC) {
+ sprintf(buffer,"%i Cm",distance);
+ sprintf(buffer1,"****RANGE!****");
+ sprintf(buffer2,"DISTANCE");
+ sprintf(buffer3,"%0.2f",avgdistance);
+ sprintf(buffer4,"Menu");
- else {
- lcd.clear();
- if (units == METRIC) {
- length = sprintf(buffer,"%i Cm",distance);
- length1 = sprintf(buffer1,"****RANGE!****");
- length2 = sprintf(buffer2,"***DISTANCE***");
- length3 = sprintf(buffer3,"Alert = %i",alert);
} else {
- length = sprintf(buffer,"%i Inches",distance);
- length1 = sprintf(buffer1,"****RANGE!****");
- length2 = sprintf(buffer2,"***DISTANCE***");
+ sprintf(buffer,"%i Inches",distance);
+ sprintf(buffer1,"****RANGE!****");
+ sprintf(buffer2,"***DISTANCE***");
+ sprintf(buffer2,"Menu");
}
- lcd.printString(buffer,20,3);
+ lcd.printString(buffer,25,2);
lcd.printString(buffer1,0,0);
- lcd.printString(buffer2,0,1);
- lcd.printString(buffer3,0,2);
- float i = r7/84;
- float distbar = distance*i;
+ lcd.printString(buffer2,16,1);
+ lcd.printString(buffer4,0,5);
+ lcd.printString(buffer3,0,3);
+
+ float i = (r7/84);
+ float distbar = (distance*i);
//drawRect(int x0,int y0,int width,int height,int fill);
- lcd.drawRect(0,38,distbar,7,1);
+ lcd.drawRect(0,29,distbar,7,1); // MOVE BAR UP!!!!!!!!!!!!!!!!!!!!!!!!!
lcd.refresh();
}
@@ -196,29 +200,34 @@
void setalert()
{
- if (distance >= r6 && distance < r7) { // r6 150 and r7 200
- alert = 1; //flash green
- } else if (distance >= r5 && distance < r6) { // r5 90 and r6 150
- alert = 2; //steady green
- } else if (distance >= r4 && distance < r5) { // r4 60 and r5 90
- alert = 3; //flashing amber
- } else if (distance >= r3 && distance < r4) { // r3 40 and r4 60
- alert = 4; //steady amber
- } else if ( distance > r2 && distance < r3) { // r2 20 and r3 40
- alert = 5; //flashing red
- } else if (distance > 1 && distance <= r2) { //r1 3 and r2 20
- alert = 6; //steady red
- } else if (distance <=1) {
- alert = 7; //all flashing
+ /** A fuction used to determin the alert level given a range with the use of IF statments
+ @param distance The distance read from sensor
+ @param alert The level that distance falls with in 0 -7
+ @returns alert
+ */
+
+ if (distance >= (r6*c) && distance < (r7*c)) { // r6 150 and r7 200
+ alert = 1; /// alert 1 distance between preset 150Cm to 200Cm
+ } else if (distance >= (r5*c) && distance < (r6*c)) {
+ alert = 2; /// alert 2 when between preset 90Cm to 150Cm
+ } else if (distance >= (r4*c) && distance < (r5*c)) {
+ alert = 3; /// alert 3 when distance between 60Cm to 90Cm
+ } else if (distance >= (r3*c) && distance < (r4*c)) {
+ alert = 4; /// alert 4 when distance between 40Cm and 60Cm
+ } else if (distance >= (r2*c) && distance < (r3*c)) {
+ alert = 5; ///alert 5 when distance between 20Cm and 40m
+ } else if (distance >= (r1*c) && distance <= (r2*c)) { //r1 3 and r2 20
+ alert = 6; ///alert 6 when distance between 1 and 20
+ } else if (distance <=(r1*c)) {
+ alert = 7; ///alert 7 when distance below 1Cm
} else {
- alert = 0; //no output
+ alert = 0; /// alert 0 all else
}
}
void setleds()
{
- // If statments to determin the output of each LED
- if (Alertlevel[alert].frr_led and Alertlevel[alert].fgg_led and Alertlevel[alert].fa_led == HIGH) {
+ if (alert ==7) {
if (g_timer_flag_led) {
g_timer_flag_led = 0; // if it has, clear the flag
rr_led = !rr_led;
@@ -247,25 +256,39 @@
}
}
-/*
+
void setbuzzer()
{
+ int beat;
+ /**
+ control the PWM to drive the buzzer
+ @param buzzer.period frequncy 1KHz
+ @param buzzer duty cycle equal on/off max volume
+ @param Alertlevel[alert].toneon controls how long the tone will last depending on alert
+ */
if (g_timer_flag_tone) {
- g_timer_flag_tone = 0;
- buzzer.period (1/1000);
- buzzer=0.5;
- buzzoff.attach(&nobuzz,Alertlevel[alert].toneon);
+ g_timer_flag_tone = 1;
+ if (beat == 10) {
+ beat = 0;
+ } else {
+ beat++;
+ }
+
+
+
+ if (Alertlevel[alert].toneon < beat) {
+ buzzer.period (1/10000);
+ buzzer = 0.5;
+ } else {
+ buzzer = 0.0;
+ }
+
+
}
-}*/
-
-void nobuzz()
-{
- buzzer = 0.0;
}
void backlight ()
{
-
if (bright == 1.0) {
bright = 0;
} else {
@@ -274,51 +297,43 @@
lcd.setBrightness(bright);
}
-
-
-
void sw2_isr()
{
- g_sw2_flag = 1; // set flag in 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
+ 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
+ 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
+ g_timer_flag_srf02 = 1; /** set flag in ISR by ticker_srf02 @param g_timer_flag_srf02 0 or 1 */
}
void timer_isr_tone()
{
- g_timer_flag_tone = 1;
+ g_timer_flag_tone = 1; /** set flag in ISR by ticker_tone @param g_timer_flag_tone 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()
{
- int length2;
- int length1;
- int length3;
- int length4;
- char buffer2[14];
- char buffer3[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- char buffer1[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- char buffer4[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14
-
while(1) {
if (g_sw1_flag) {
g_sw1_flag = 0;
- page++;
+ page++; /// Moves page
lcd.clear();
}
switch (page) {
@@ -329,13 +344,15 @@
lcd.clear();
} else {
int lightbar = bright*84;
- length2 = sprintf(buffer2,"*****MENU*****");
- length1 = sprintf(buffer1,"BACKLIGHT");
- length3 = sprintf(buffer3,"%.0f%%",bright*100);
+ sprintf(buffer2,"*****MENU*****");
+ sprintf(buffer1,"BACKLIGHT");
+ sprintf(buffer3,"%.0f%%",bright*100);
+ sprintf(buffer4,"Next Adj");
lcd.printString(buffer2,0,0);
lcd.printString(buffer1,0,1);
lcd.printString(buffer3,0,2);
- lcd.drawRect(0,38,lightbar,7,1);
+ lcd.printString(buffer4,0,5);
+ lcd.drawRect(0,26,lightbar,7,1); // move bar up!!!!!!!!!!!!!!!!
lcd.refresh();
}
@@ -353,9 +370,11 @@
length2 = sprintf(buffer2,"*****MENU*****");
length1 = sprintf(buffer1,"OFFSET");
length3 = sprintf(buffer3,"%i",offset);
+ sprintf(buffer4,"Next Adj");
lcd.printString(buffer2,0,0);
lcd.printString(buffer1,0,1);
lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,5);
lcd.refresh();
}
@@ -366,22 +385,26 @@
g_sw2_flag = 0; // if it has, clear the flag
if (units == METRIC) {
units = IMPERIAL;
+ c= 0.3937;
} else {
units = METRIC;
+ c = 1;
}
}
if (units == METRIC) {
- length3 = sprintf(buffer3,"METRIC");
+ sprintf(buffer3,"METRIC");
+ lcd.printString(buffer3,0,2);
} else {
- length3 = sprintf(buffer3,"IMPERIAL");
+ sprintf(buffer3,"IMPERIAL");
+ lcd.printString(buffer3,0,2);
}
-
- length2 = sprintf(buffer2,"*****MENU*****");
- length1 = sprintf(buffer1,"UNITS");
+ sprintf(buffer2,"*****MENU*****");
+ sprintf(buffer1,"UNITS");
+ sprintf(buffer4,"Next Adj");
lcd.printString(buffer2,0,0);
lcd.printString(buffer1,0,1);
- lcd.printString(buffer3,0,2);
-
+ lcd.printString(buffer4,0,5);
+ lcd.refresh();
break;
@@ -394,36 +417,67 @@
length2 = sprintf(buffer3,"*****MENU*****");
length3 = sprintf(buffer1,"RANGE");
length3 = sprintf(buffer2,"PARAMETERS");
+ sprintf(buffer4,"Next Adj");
lcd.printString(buffer3,0,0);
lcd.printString(buffer1,0,1);
lcd.printString(buffer2,0,2);
-
+ lcd.printString(buffer4,0,5);
break;
default:
lcd.clear();
+ /* //save();
+
+ ///////////////////// Writing list to file example //////////////////////
+
+ // for this example, I'll create some numbers to write to file in a big list
+ // a data logger for example will usually append to a file - at a reading
+ // at the end rather than creating a new file
+ fp = fopen("/sd/settinngs.txt", "a");
+
+ 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....");
+ for(int i = 1; i <= 50; i++) {
+ int r1;
+ int r2;
+ int r3;
+ int r4;
+ int r5;
+ int r6;
+ int r7;
+ int offset; // create suitable variables to store the data in the file
+ float bright;
+ float dummy = 1000.0F/i; // dummy variable
+ fprintf(fp, "%d,%f\n",i,dummy); // print formatted string to file (CSV)
+ }
+ serial.printf("Done.\n");
+ fclose(fp); // ensure you close the file after writing
+ }
+
+ // you can comment out the writing example to check that the writing has
+ // worked - when you run it after commenting, it should still open the
+ // file that exists on the SD card - assuming you didn't delete it!
+ */
return;
}
}
- lcd.refresh();
+ // lcd.refresh();
+
}
void submenu()
{
- int length2;
- int length1;
- int length3;
- int length4;
- char buffer2[14];
- char buffer3[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- char buffer1[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
- char buffer4[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14
+
while(1) {
+ /// innterupt used to shift page
if (g_sw1_flag) {
g_sw1_flag = 0;
subpage++;
}
switch (subpage) {
+ ///interupt used to adjust range
case 0:
if (g_sw2_flag) {
g_sw2_flag = 0; // if it has, clear the flag
@@ -437,10 +491,12 @@
length3 = sprintf(buffer2,"RANGE");
length3 = sprintf(buffer3,"PARAMETERS");
length4 = sprintf(buffer4,"1Cm to %iCm",r2);
+ sprintf(buffer,"Next Adj");
lcd.printString(buffer1,0,0);
lcd.printString(buffer2,0,1);
lcd.printString(buffer3,0,2);
lcd.printString(buffer4,0,3);
+ lcd.printString(buffer,0,5);
break;
case 1:
@@ -454,14 +510,16 @@
}
}
- length2 = sprintf(buffer1,"*****MENU*****");
- length3 = sprintf(buffer2,"RANGE");
- length3 = sprintf(buffer3,"PARAMETERS");
- length3 = sprintf(buffer4,"%iCm to %iCm",r2,r3);
+ sprintf(buffer1,"*****MENU*****");
+ sprintf(buffer2,"RANGE");
+ sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer4,"%iCm to %iCm",r2,r3);
+ sprintf(buffer,"Next Adj");
lcd.printString(buffer1,0,0);
lcd.printString(buffer2,0,1);
lcd.printString(buffer3,0,2);
lcd.printString(buffer4,0,3);
+ lcd.printString(buffer,0,5);
break;
case 2:
@@ -475,14 +533,16 @@
}
}
- length2 = sprintf(buffer1,"*****MENU*****");
- length3 = sprintf(buffer2,"RANGE");
- length3 = sprintf(buffer3,"PARAMETERS");
- length3 = sprintf(buffer4,"%iCm to %iCm",r3,r4);
+ sprintf(buffer1,"*****MENU*****");
+ sprintf(buffer2,"RANGE");
+ sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer4,"%iCm to %iCm",r3,r4);
+ sprintf(buffer,"Next Adj");
lcd.printString(buffer1,0,0);
lcd.printString(buffer2,0,1);
lcd.printString(buffer3,0,2);
lcd.printString(buffer4,0,3);
+ lcd.printString(buffer,0,5);
break;
case 3:
@@ -496,14 +556,16 @@
}
}
- length2 = sprintf(buffer1,"*****MENU*****");
- length3 = sprintf(buffer2,"RANGE");
- length3 = sprintf(buffer3,"PARAMETERS");
- length3 = sprintf(buffer4,"%iCm to %iCm",r4,r5);
+ sprintf(buffer1,"*****MENU*****");
+ sprintf(buffer2,"RANGE");
+ sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer4,"%iCm to %iCm",r4,r5);
+ sprintf(buffer,"Next Adj");
lcd.printString(buffer1,0,0);
lcd.printString(buffer2,0,1);
lcd.printString(buffer3,0,2);
lcd.printString(buffer4,0,3);
+ lcd.printString(buffer,0,5);
break;
case 4:
@@ -520,10 +582,12 @@
length3 = sprintf(buffer2,"RANGE");
length3 = sprintf(buffer3,"PARAMETERS");
length3 = sprintf(buffer4,"%iCm to %iCm",r5,r6);
+ sprintf(buffer,"Next Adj");
lcd.printString(buffer1,0,0);
lcd.printString(buffer2,0,1);
lcd.printString(buffer3,0,2);
lcd.printString(buffer4,0,3);
+ lcd.printString(buffer,0,5);
break;
case 5:
@@ -539,16 +603,39 @@
length2 = sprintf(buffer1,"*****MENU*****");
length3 = sprintf(buffer2,"RANGE");
length3 = sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer,"Next Adj");
length3 = sprintf(buffer4,"%iCm to %iCm",r6,r7);
lcd.printString(buffer1,0,0);
lcd.printString(buffer2,0,1);
lcd.printString(buffer3,0,2);
lcd.printString(buffer4,0,3);
+ lcd.printString(buffer,0,5);
break;
default:
lcd.clear();
+ // save();
return;
}
}
+}
+void setup()
+{
+ 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_tone.attach(&timer_isr_tone,1); /// Attach the ticker which controls the off time of the buzzer 0.1 = 10 beats per second
+ ticker_standby.attach(&timer_isr_standby,3.0);
+ 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
+
+ /**Set up LEDs switches and LEDS
+ @param r_led 1 or 0
+ @param g_led 1 or 0
+ @param b_led 1 or 0
+ */
+ rr_led = 0;
+ a_led = 0;
+ gg_led = 0;
+ sw2.mode(PullDown);
+ sw1.mode(PullDown);
}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h Mon Apr 25 10:08:05 2016 +0000
@@ -0,0 +1,489 @@
+/**
+@file main.h
+@brief Header file containing functions prototypes, defines and global variables.
+@brief Ranger Project
+@brief Revision 1.0.
+@author Philip Thompson
+@date March 2016
+@brief The following code has been writen for the University of Leeds ELEC264501 embedded system project and is intended to
+create a programe that can read a distance from an SRF02 sensor and then based aponn the reading disply the distance on the screen
+ and increment the LEDs and buzzer according the provision of a temperature sensor is also provied as a secondary function when no
+ object is detected with in range.
+*/
+
+#ifndef MAIN_H
+#define MAIN_H
+#include "mbed.h"
+#include "mbed.h"
+#include "SRF02.h"
+#include "N5110.h"
+#include "TMP102.h"
+#include "SDFileSystem.h"
+
+#define LOW 0 /// No output
+#define HIGH 1 /// High output
+#define METRIC 1
+#define IMPERIAL 0
+
+
+/**
+@namespace LEDs
+@brief Output for Alert LEDs
+*/
+/** Red LED connect to pin PTA1*/
+DigitalOut rr_led (PTA1);
+/** amber LED connect to pin PTC2*/
+DigitalOut a_led (PTC2);
+/** Green LED connect to pin PTB23*/
+DigitalOut gg_led(PTB23);
+
+/**
+@namespace BOARDLEDs
+@brief On board LEDs
+*/
+DigitalOut r_led(LED_RED);
+DigitalOut g_led(LED_GREEN);
+DigitalOut b_led(LED_BLUE);
+
+/**
+@namespace Buzzer
+@brief PWM output for Buzzer
+*/
+PwmOut buzzer(PTA2);
+
+/**
+@namespace Buttons
+@brief Button triggered Interrupts
+*/
+InterruptIn sw1(PTB19);
+InterruptIn sw2(PTB18);
+
+/**
+@namespace Timers
+@brief Tickers and time outs
+*/
+Ticker ticker;
+Ticker ticker_srf02;
+Ticker ticker_tone;
+Ticker ticker_standby;
+Timeout buzzoff;
+
+// Create TMP102 object
+TMP102 tmp102(I2C_SDA,I2C_SCL);
+
+/**
+@namespace Ranger
+@brief Creat the Ranger object
+*/
+SRF02 srf02(I2C_SDA,I2C_SCL);
+
+/**
+@namespace LCD
+@brief Creats the LCD object
+*/
+N5110 lcd(PTE26,PTA0,PTC4,PTD0,PTD2,PTD1,PTC3);
+
+/// Connections to SD card holder on K64F (SPI interface)
+SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
+
+/**
+@namespace TimerFlags
+@brief Flags for use with timed interupts
+*/
+volatile int g_timer_flag_led = 0, g_timer_flag_srf02 = 0, g_timer_flag_tone = 0; /** Flag rised by interupts*/
+volatile int g_timer_flag_standby = 0;
+/**
+@namespace ButtonFlages
+@brief Flags for use with button interupts
+*/
+volatile int g_sw1_flag = 0, g_sw2_flag = 0;
+
+/**
+@namespace RangePresets
+@brief Preset range of the differant alert levels
+*/
+int r1 = 3,/*!< Upper limit of alert 1 */r2 = 20,/*!< Upper limit of alert 2 */r3 = 40,/*!< Upper limit of alert 3 */r4 = 60,/*!< Upper limit of alert 4 */r5 = 80,/*!< Upper limit of alert 5 */r6 = 100,/*!< Upper limit of alert 6 */r7 = 120; /*!< Upper limit of alert 7 */
+
+FILE *fp;
+
+int myarray[9];/*!< array to hold last ten range readings */
+int d =0;
+int t;
+int i;
+float avgdistance;
+int totaldistance;
+int subpage; /*!< veriable to hold the page being viewed with in the submenu */
+int page;/*!< veriable to hold the page being viewed with in the menu */
+int offset = 0;/*!< veriable to hold the offset and adjust the 0 Range point */
+int alert;/*!< veriable to hold the current alert level */
+int distance;/*!< veriable to hold the distance read from the srf02 sensor */
+float bright = 1;/*!< veriable to hold the current LED backlight of the 5110 LCD */
+char units = METRIC;/*!< veriable to hold the current unit type set to METRIC as default */
+int length, length1, length2, length3, length4;
+char buffer[14], buffer1[14], buffer2[14], buffer3[14], buffer4[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+float T;
+int standby =1;
+float c =1; /// convertion factor from Cm to inch
+
+
+struct Alertlevel {
+ char srr_led; /// stead RED LED state
+ char sa_led; /// stead AMBER LED state
+ char sgg_led; /// stead GREEN LED state
+ char frr_led;///FLASHING RED LED state
+ char fa_led; ///FLASHING AMBER LED state
+ char fgg_led; ///FLASHING GREEN LED state
+ int toneon;
+ int toneoff;
+ }; /*!< Stucture to hold all outputs. Steady LEDs, Flashing LEDs, Tone on, Tonne off*/
+typedef const struct Alertlevel STyp;
+
+STyp Alertlevel[8] = {
+ {LOW,LOW,LOW,LOW,LOW,LOW,0,1}, // no output
+ {LOW,LOW,LOW,LOW,LOW,HIGH,1,8}, //flash green
+ {LOW,LOW,HIGH,LOW,LOW,LOW,2,7}, //steady green
+ {LOW,LOW,HIGH,LOW,HIGH,LOW,4,5}, //flash amber
+ {LOW,HIGH,HIGH,LOW,LOW,LOW,6,3}, //steady amber
+ {LOW,HIGH,HIGH,HIGH,LOW,LOW,8,1}, //flash red
+ {HIGH,HIGH,HIGH,LOW,LOW,LOW,9,0},// steady red
+ {LOW,LOW,LOW,HIGH,HIGH,HIGH,9,0} // all flash
+};/*!< Array contaning structures for diffent outputs */
+
+
+void lcdoutput();
+void timer_isr_led();
+void timer_isr_srf02();
+void timer_isr_tone();
+void timer_isr_standby();
+/** Called to increment to brightness by 0.2 each time when at 1 resets back to 0.0
+@param bright 0.0-1
+@returns lcd.setbrightness
+@code
+if (bright == 1.0) {
+ bright = 0;
+} else {
+ bright += 0.2;
+}
+lcd.setBrightness(bright);
+@endcode
+*/
+void backlight();
+void init_K64F();
+void sw2_isr();
+void sw1_isr();
+void setup();
+
+/** A fuction used to determin the alert level given a range with the use of IF statments
+@param distance The distance read from sensor
+@param alert The level that distance falls with in 0 -7
+@returns alert
+@code
+if (distance >= r6 && distance < r7) { // r6 150 and r7 200
+ alert = 1; /// alert 1 distance between preset 150Cm to 200Cm
+} else if (distance >= r5 && distance < r6) {
+ alert = 2; /// alert 2 when between preset 90Cm to 150Cm
+} else if (distance >= r4 && distance < r5) {
+ alert = 3; /// alert 3 when distance between 60Cm to 90Cm
+} else if (distance >= r3 && distance < r4) {
+ alert = 4; /// alert 4 when distance between 40Cm and 60Cm
+} else if ( distance > r2 && distance < r3) {
+ alert = 5; ///alert 5 when distance between 20Cm and 40m
+} else if (distance > r1 && distance <= r2) { //r1 3 and r2 20
+ alert = 6; ///alert 6 when distance between 1 and 20
+} else if (distance <=r1) {
+ alert = 7; ///alert 7 when distance below 1Cm
+} else {
+ alert = 0; /// alert 0 all else
+}
+}
+@endcode
+*/
+void setalert();
+/** If statments to determine the output of each LED by inspecting the struct in the relevent element of the alertlevel array
+
+@code
+ if (alert ==7) {
+ if (g_timer_flag_led) {
+ g_timer_flag_led = 0; // if it has, clear the flag
+ rr_led = !rr_led;
+ gg_led = !gg_led;
+ a_led = !a_led;
+ }
+ } else if(Alertlevel[alert].fa_led == HIGH) {
+ if (g_timer_flag_led) {
+ g_timer_flag_led = 0; // if it has, clear the flag
+ a_led = !a_led;
+ }
+ } else if (Alertlevel[alert].frr_led == HIGH) {
+ if (g_timer_flag_led) {
+ g_timer_flag_led = 0; // if it has, clear the flag
+ rr_led = !rr_led;
+ }
+ } else if(Alertlevel[alert].fgg_led == HIGH) {
+ if (g_timer_flag_led) {
+ g_timer_flag_led = 0; // if it has, clear the flag
+ gg_led = !gg_led;
+ }
+ } else {
+ rr_led = Alertlevel[alert].srr_led;
+ a_led = Alertlevel[alert].sa_led;
+ gg_led = Alertlevel[alert].sgg_led;
+ }
+
+}
+@endcode*/
+void setleds();
+void setbuzzer();
+
+
+void menu();
+/**
+{
+ Function called to invoke a menu within a while loop with button interupts used to move pages and adjust within a switch statment
+ @param g_sw1_flag 0 or 1 used to advance page
+ @param g_sw2_flag 0 or 1 used to adjust current item
+ @code
+ while(1) {
+
+
+ if (g_sw1_flag) {
+ g_sw1_flag = 0;
+ page++; /// Moves page
+ lcd.clear();
+ }
+ switch (page) {
+ case 0:
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ backlight();
+ lcd.clear();
+ } else {
+ int lightbar = bright*84;
+ sprintf(buffer2,"*****MENU*****");
+ sprintf(buffer1,"BACKLIGHT");
+ sprintf(buffer3,"%.0f%%",bright*100);
+ lcd.printString(buffer2,0,0);
+ lcd.printString(buffer1,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.drawRect(0,38,lightbar,7,1);
+ lcd.refresh();
+
+ }
+ break;
+
+ case 1:
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (offset == 20) {
+ offset = 0;
+ } else {
+ offset += 1;
+ }
+ } else {
+ length2 = sprintf(buffer2,"*****MENU*****");
+ length1 = sprintf(buffer1,"OFFSET");
+ length3 = sprintf(buffer3,"%i",offset);
+ lcd.printString(buffer2,0,0);
+ lcd.printString(buffer1,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.refresh();
+ }
+
+ break;
+
+ case 2:
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (units == METRIC) {
+ units = IMPERIAL;
+ } else {
+ units = METRIC;
+ }
+ }
+ if (units == METRIC) {
+ sprintf(buffer3,"METRIC");
+ lcd.printString(buffer3,0,2);
+ } else {
+ sprintf(buffer3,"IMPERIAL");
+ lcd.printString(buffer3,0,2);
+ }
+
+ sprintf(buffer2,"*****MENU*****");
+ sprintf(buffer1,"UNITS");
+ lcd.printString(buffer2,0,0);
+ lcd.printString(buffer1,0,1);
+ lcd.refresh();
+
+ break;
+
+ case 3:
+
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ submenu();
+ }
+ length2 = sprintf(buffer3,"*****MENU*****");
+ length3 = sprintf(buffer1,"RANGE");
+ length3 = sprintf(buffer2,"PARAMETERS");
+ lcd.printString(buffer3,0,0);
+ lcd.printString(buffer1,0,1);
+ lcd.printString(buffer2,0,2);
+
+
+ break;
+
+ default:
+ lcd.clear();
+ return;
+ }
+ }
+ @endcode
+ */
+ void menu();
+ /**
+ @code
+ while(1) {
+ /// innterupt used to shift page
+ if (g_sw1_flag) {
+ g_sw1_flag = 0;
+ subpage++;
+ }
+ switch (subpage) {
+ ///interupt used to adjust range
+ case 0:
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (r2 == r3) {
+ r2 = 1;
+ } else {
+ r2 = r2+1;
+ }
+ }
+ length2 = sprintf(buffer1,"*****MENU*****");
+ length3 = sprintf(buffer2,"RANGE");
+ length3 = sprintf(buffer3,"PARAMETERS");
+ length4 = sprintf(buffer4,"1Cm to %iCm",r2);
+ lcd.printString(buffer1,0,0);
+ lcd.printString(buffer2,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,3);
+ break;
+
+ case 1:
+
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (r3 == r4) {
+ r3 = r2;
+ } else {
+ r3 += 1;
+ }
+ }
+
+ sprintf(buffer1,"*****MENU*****");
+ sprintf(buffer2,"RANGE");
+ sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer4,"%iCm to %iCm",r2,r3);
+ lcd.printString(buffer1,0,0);
+ lcd.printString(buffer2,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,3);
+ break;
+
+ case 2:
+
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (r4 == r5) {
+ r4 = r3;
+ } else {
+ r4 += 1;
+ }
+ }
+
+ sprintf(buffer1,"*****MENU*****");
+ sprintf(buffer2,"RANGE");
+ sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer4,"%iCm to %iCm",r3,r4);
+ lcd.printString(buffer1,0,0);
+ lcd.printString(buffer2,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,3);
+ break;
+
+ case 3:
+
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (r5 == r6) {
+ r5 = r4;
+ } else {
+ r5 += 1;
+ }
+ }
+
+ sprintf(buffer1,"*****MENU*****");
+ sprintf(buffer2,"RANGE");
+ sprintf(buffer3,"PARAMETERS");
+ sprintf(buffer4,"%iCm to %iCm",r4,r5);
+ lcd.printString(buffer1,0,0);
+ lcd.printString(buffer2,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,3);
+ break;
+ case 4:
+
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (r6 == r7) {
+ r6 = r5;
+ } else {
+ r6 += 1;
+ }
+ }
+
+ length2 = sprintf(buffer1,"*****MENU*****");
+ length3 = sprintf(buffer2,"RANGE");
+ length3 = sprintf(buffer3,"PARAMETERS");
+ length3 = sprintf(buffer4,"%iCm to %iCm",r5,r6);
+ lcd.printString(buffer1,0,0);
+ lcd.printString(buffer2,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,3);
+ break;
+ case 5:
+
+ if (g_sw2_flag) {
+ g_sw2_flag = 0; // if it has, clear the flag
+ if (r7 == 300) {
+ r7 = r6;
+ } else {
+ r7 += 1;
+ }
+ }
+
+ length2 = sprintf(buffer1,"*****MENU*****");
+ length3 = sprintf(buffer2,"RANGE");
+ length3 = sprintf(buffer3,"PARAMETERS");
+ length3 = sprintf(buffer4,"%iCm to %iCm",r6,r7);
+ lcd.printString(buffer1,0,0);
+ lcd.printString(buffer2,0,1);
+ lcd.printString(buffer3,0,2);
+ lcd.printString(buffer4,0,3);
+ break;
+
+ default:
+ lcd.clear();
+ // save();
+ return;
+ }
+ }
+ }
+ @endcode
+ */
+ void submenu();
+ void save();
+ void load();
+ void standby1();
+
+#endif
\ No newline at end of file