Sean Nagle / Mbed 2 deprecated Assignment5

Assignment 5 for OCE360, timers, tickers, and interrupts.

Dependencies:   4DGL-uLCD-SE MMA8452Q SDFileSystem bouncing_ball mbed

Fork of OCE360_4 by OCE_360

main.cpp@11:abfb94de3a41, 2017-11-16 (annotated)

Committer:
rsean10
Date:
Thu Nov 16 15:01:30 2017 +0000
Revision:
11:abfb94de3a41
Parent:
10:1fe988d4e61e
Child:
12:1b20c6eceae8
writes 1 line to sd card, does not write data

Who changed what in which revision?

UserRevisionLine numberNew contents of line
slicht 2:552e6feb8709 1 // A solution to OCE360 Homework #4.
slicht 2:552e6feb8709 2 // Objective: Use object oriented programming to create a system that displays
slicht 2:552e6feb8709 3 // multiple balls bouncing around the LCD screen.
slicht 3:a7f02754bc99 4 // Stephen Licht, 11/7/2017
slicht 1:6b99ffa62cc8 5
slicht 0:8d3812068c6c 6 #include "mbed.h"
slicht 2:552e6feb8709 7 #include "MMA8452Q.h" //acceleromater library
slicht 2:552e6feb8709 8 #include "uLCD_4DGL.h" //LCD library
slicht 2:552e6feb8709 9 #include "bouncing_ball.h" //new ball phyics library
rsean10 8:2617100c441d 10 #include "SDFileSystem.h"
slicht 1:6b99ffa62cc8 11
slicht 2:552e6feb8709 12 #define UPDATE_TIME_S 0.02
slicht 2:552e6feb8709 13 #define START_X_1 10
slicht 2:552e6feb8709 14 #define START_Y_1 10
slicht 2:552e6feb8709 15 #define START_X_2 20
slicht 2:552e6feb8709 16 #define START_Y_2 20
slicht 2:552e6feb8709 17 #define RADIUS_1 6
slicht 2:552e6feb8709 18 #define RADIUS_2 3
slicht 0:8d3812068c6c 19
slicht 2:552e6feb8709 20 #define DEBUG_MODE 0
slicht 2:552e6feb8709 21
rsean10 6:050104c0dc75 22 #define LCD_UPDATE .091 //11 Hz
rsean10 9:7a577d790538 23
rsean10 10:1fe988d4e61e 24 // Accelerometer - SDA, SCL, and I2C address
rsean10 10:1fe988d4e61e 25 MMA8452Q accel(p28, p27, 0x1D); //initialize a driver object for an accelerometer connected on pins 27-28.
rsean10 10:1fe988d4e61e 26
rsean10 9:7a577d790538 27 // Analog input (pin 15)
rsean10 9:7a577d790538 28 AnalogIn tempin(p15);
rsean10 5:93f88deda5ba 29
rsean10 5:93f88deda5ba 30 //Initialize Serial communication
rsean10 5:93f88deda5ba 31 Serial pc(USBTX, USBRX);
rsean10 5:93f88deda5ba 32
rsean10 8:2617100c441d 33 // SD card (SPI pins)
rsean10 8:2617100c441d 34 SDFileSystem sd(p5, p6, p7, p8, "sd");
rsean10 8:2617100c441d 35
rsean10 9:7a577d790538 36 //Drawing positions
rsean10 9:7a577d790538 37 int lastx1;
rsean10 9:7a577d790538 38 int lasty1;
rsean10 9:7a577d790538 39 int lastx2;
rsean10 9:7a577d790538 40 int lasty2;
rsean10 9:7a577d790538 41
rsean10 6:050104c0dc75 42 //Led Initialization
rsean10 6:050104c0dc75 43 DigitalOut led1(LED1); //update leds
rsean10 6:050104c0dc75 44 DigitalOut led2(LED2);
rsean10 7:614b40b85579 45 DigitalOut led3(LED3);
rsean10 6:050104c0dc75 46
rsean10 7:614b40b85579 47 //Toggle Initialization
rsean10 7:614b40b85579 48 InterruptIn button(p13); //Interrupt on the button on pin 13
rsean10 7:614b40b85579 49 Timer debounce; //defines debounce timer for proper switching
rsean10 7:614b40b85579 50
rsean10 8:2617100c441d 51 int recorder = 0;
rsean10 8:2617100c441d 52
rsean10 7:614b40b85579 53 void toggle(){
rsean10 7:614b40b85579 54 if(debounce.read_ms()>175){
rsean10 9:7a577d790538 55 led3= !led3;
rsean10 8:2617100c441d 56 recorder = !recorder;
rsean10 7:614b40b85579 57 debounce.reset(); //restart timer after toggle occurs
rsean10 7:614b40b85579 58 }
rsean10 7:614b40b85579 59 }
rsean10 6:050104c0dc75 60
rsean10 8:2617100c441d 61 //Position recorder
rsean10 9:7a577d790538 62 Timer logtimer;
rsean10 9:7a577d790538 63 Ticker logticker;
rsean10 8:2617100c441d 64
rsean10 10:1fe988d4e61e 65 float voltage_in;
rsean10 10:1fe988d4e61e 66 float degrees_c;
rsean10 10:1fe988d4e61e 67
rsean10 10:1fe988d4e61e 68 FILE *file;
rsean10 10:1fe988d4e61e 69 void datarecord();
rsean10 8:2617100c441d 70
slicht 2:552e6feb8709 71 //Function prototype for color selection function:
slicht 2:552e6feb8709 72 int get_LCD_color(int color_integer);
slicht 1:6b99ffa62cc8 73
slicht 1:6b99ffa62cc8 74 // Graphic LCD - TX, RX, and RES pins
slicht 2:552e6feb8709 75 uLCD_4DGL uLCD(p9,p10,p11); //initialize a driver object for an LCD connected on pins 9-11
slicht 1:6b99ffa62cc8 76
slicht 2:552e6feb8709 77 physics_ball ball1; //initialize two balls for bouncing
slicht 2:552e6feb8709 78 physics_ball ball2; //the default states from the library will be used initially
slicht 0:8d3812068c6c 79
rsean10 6:050104c0dc75 80 //Ticker for update
rsean10 6:050104c0dc75 81 Ticker update1; //ball 1 ticker for update position
rsean10 6:050104c0dc75 82 Ticker update2; //ball 2 ticker for update position
rsean10 6:050104c0dc75 83
rsean10 6:050104c0dc75 84 void ball1up(){
rsean10 6:050104c0dc75 85 ball1.update(UPDATE_TIME_S,accel); //updates position
rsean10 6:050104c0dc75 86 led1 = !led1; //changes led state every update
rsean10 6:050104c0dc75 87 }
rsean10 6:050104c0dc75 88
rsean10 6:050104c0dc75 89 void ball2up(){
rsean10 6:050104c0dc75 90 ball2.update(UPDATE_TIME_S,accel); //updates position
rsean10 6:050104c0dc75 91 led2 = !led2; //changes led state every update
rsean10 6:050104c0dc75 92 }
rsean10 6:050104c0dc75 93
rsean10 6:050104c0dc75 94 //Ticker for display
rsean10 6:050104c0dc75 95 Ticker displayup; //ticker for displaying ball on lcd
rsean10 6:050104c0dc75 96
rsean10 6:050104c0dc75 97 void display(){
rsean10 9:7a577d790538 98
rsean10 9:7a577d790538 99 // Erase old circles by writing over there locations using the screen color:
rsean10 9:7a577d790538 100 uLCD.filled_circle(lastx1, lasty1, ball1.radius, BLACK);
rsean10 9:7a577d790538 101 uLCD.filled_circle(lastx2, lasty2, ball2.radius, BLACK);
rsean10 9:7a577d790538 102
rsean10 6:050104c0dc75 103 // Draw circles in the x and y positions stored by the ball objects:
rsean10 6:050104c0dc75 104 uLCD.filled_circle(ball1.posx, ball1.posy, ball1.radius, get_LCD_color(ball1.color));
rsean10 6:050104c0dc75 105 uLCD.filled_circle(ball2.posx, ball2.posy, ball2.radius, get_LCD_color(ball2.color));
rsean10 9:7a577d790538 106
rsean10 9:7a577d790538 107 //Sets previous ball position to be erased in next iteration
rsean10 9:7a577d790538 108 lastx1 = ball1.posx;
rsean10 9:7a577d790538 109 lasty1 = ball1.posy;
rsean10 9:7a577d790538 110 lastx2 = ball2.posx;
rsean10 9:7a577d790538 111 lasty2 = ball2.posy;
rsean10 5:93f88deda5ba 112 }
rsean10 5:93f88deda5ba 113
rsean10 5:93f88deda5ba 114 int main(){
rsean10 9:7a577d790538 115
slicht 1:6b99ffa62cc8 116 // Initialize uLCD
slicht 1:6b99ffa62cc8 117 uLCD.baudrate(115200);
slicht 1:6b99ffa62cc8 118 uLCD.background_color(BLACK);
slicht 1:6b99ffa62cc8 119 uLCD.cls();
rsean10 8:2617100c441d 120
slicht 1:6b99ffa62cc8 121 // Initialize accelerometer
slicht 1:6b99ffa62cc8 122 accel.init();
slicht 1:6b99ffa62cc8 123
slicht 2:552e6feb8709 124 //Initialize balls:
slicht 2:552e6feb8709 125 ball1.set_state(START_X_1,START_Y_1,0,0); //speeds are set to zero
slicht 2:552e6feb8709 126 ball1.set_state(START_X_2,START_Y_2,0,0);
slicht 2:552e6feb8709 127
slicht 2:552e6feb8709 128 //Set ball radius and color:
slicht 2:552e6feb8709 129 ball1.set_param(RADIUS_1,0); //color is unimportant
slicht 2:552e6feb8709 130 ball2.set_param(RADIUS_2,1); //just making sure the colors are different
slicht 2:552e6feb8709 131
rsean10 6:050104c0dc75 132 update1.attach(&ball1up,UPDATE_TIME_S); //ticker force position update ball 1
rsean10 6:050104c0dc75 133 update2.attach(&ball2up,UPDATE_TIME_S); //ticker force position update ball 2
rsean10 6:050104c0dc75 134
rsean10 6:050104c0dc75 135 displayup.attach(&display,LCD_UPDATE); //ticker force lcd update
rsean10 6:050104c0dc75 136
rsean10 8:2617100c441d 137 debounce.start(); //starts debounce timer
rsean10 8:2617100c441d 138 button.rise(&toggle); //toggles on button press
rsean10 8:2617100c441d 139
rsean10 9:7a577d790538 140 while (1) { //execute 'forever'
rsean10 8:2617100c441d 141
rsean10 9:7a577d790538 142 if (recorder == 1){
rsean10 9:7a577d790538 143 //File Writing
rsean10 10:1fe988d4e61e 144 //FILE *file;
rsean10 9:7a577d790538 145 file = fopen("/sd/ball_data.txt", "w");
rsean10 9:7a577d790538 146 if ( file == NULL ) {
rsean10 9:7a577d790538 147 error("ERROR: Could not open file for writing!\n\r");
rsean10 9:7a577d790538 148 return -1;
rsean10 9:7a577d790538 149 }
rsean10 9:7a577d790538 150 // Tell the user we need to wait while we collect some data
rsean10 9:7a577d790538 151 pc.printf("\nCollecting data (Do not remove SD Card!) ...\n\r");
rsean10 11:abfb94de3a41 152 logtimer.start();
rsean10 9:7a577d790538 153 fprintf(file, " Time X Position Y Position X Accleration Y Acceleration Temperature\n\r");
rsean10 11:abfb94de3a41 154 //logticker.attach(&datarecord,LCD_UPDATE);
rsean10 9:7a577d790538 155 pc.printf("\nData Recorded Sucessfully! \n\r");
rsean10 11:abfb94de3a41 156 logtimer.reset();
rsean10 9:7a577d790538 157
rsean10 9:7a577d790538 158 // Close file
rsean10 9:7a577d790538 159 fclose(file);
rsean10 9:7a577d790538 160 }
rsean10 6:050104c0dc75 161
slicht 2:552e6feb8709 162 if (DEBUG_MODE) {
slicht 3:a7f02754bc99 163 //If compiled with DEBUG_MODE flag raised, print values to screen.
slicht 2:552e6feb8709 164 uLCD.locate(0,4);
slicht 2:552e6feb8709 165 uLCD.printf("X: %d.1\nY: %.1d",ball1.posx,ball1.posy);
rsean10 9:7a577d790538 166
slicht 2:552e6feb8709 167 uLCD.locate(0,6);
slicht 2:552e6feb8709 168 uLCD.printf("VX: %f.1\nVY: %.1f",ball1.speedx,ball1.speedy);
rsean10 9:7a577d790538 169
slicht 2:552e6feb8709 170 uLCD.locate(0,10);
slicht 2:552e6feb8709 171 uLCD.printf("AX: %f.1\nAY: %.1f\nAZ: %0.1f",accel.readX(),accel.readY(),accel.readZ());
slicht 2:552e6feb8709 172 }
slicht 2:552e6feb8709 173 }
slicht 2:552e6feb8709 174 }
slicht 1:6b99ffa62cc8 175
slicht 3:a7f02754bc99 176 //Interpret LCD colors.
slicht 2:552e6feb8709 177 int get_LCD_color(int color_integer)
slicht 2:552e6feb8709 178 {
slicht 2:552e6feb8709 179 switch (color_integer) {
slicht 2:552e6feb8709 180 case 0:
slicht 2:552e6feb8709 181 return(RED);
slicht 2:552e6feb8709 182 case 1:
slicht 2:552e6feb8709 183 return(BLUE);
slicht 2:552e6feb8709 184 case 2:
slicht 2:552e6feb8709 185 return(GREEN);
slicht 2:552e6feb8709 186 default:
slicht 2:552e6feb8709 187 return(WHITE);
slicht 0:8d3812068c6c 188 }
rsean10 10:1fe988d4e61e 189 }
rsean10 10:1fe988d4e61e 190
rsean10 10:1fe988d4e61e 191 void datarecord(){
rsean10 10:1fe988d4e61e 192 float time = 1*logtimer.read();
rsean10 10:1fe988d4e61e 193 float pos1x = 1*ball1.posx;
rsean10 10:1fe988d4e61e 194 float pos1y = 1*ball1.posy;
rsean10 10:1fe988d4e61e 195 float spe1x = 1*ball1.speedx;
rsean10 10:1fe988d4e61e 196 float spe1y = 1*ball1.speedy;
rsean10 10:1fe988d4e61e 197 float accx = 1*accel.readX();
rsean10 10:1fe988d4e61e 198 float accy = 1*accel.readY();
rsean10 10:1fe988d4e61e 199
rsean10 10:1fe988d4e61e 200 float pos2x = 1*ball2.posx;
rsean10 10:1fe988d4e61e 201 float pos2y = 1*ball2.posy;
rsean10 10:1fe988d4e61e 202 float spe2x = 1*ball2.speedx;
rsean10 10:1fe988d4e61e 203 float spe2y = 1*ball2.speedy;
rsean10 10:1fe988d4e61e 204
rsean10 10:1fe988d4e61e 205 voltage_in = tempin * 3.3;
rsean10 10:1fe988d4e61e 206 degrees_c = (voltage_in - 0.5) * 100.0;
rsean10 10:1fe988d4e61e 207
rsean10 10:1fe988d4e61e 208 fprintf(file, "Ball 1: %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g\n\r",time,pos1x,pos1y,spe1x,spe1y,accx,accy,degrees_c);
rsean10 10:1fe988d4e61e 209
rsean10 10:1fe988d4e61e 210 fprintf(file, "Ball 2: %.3g %.3g %.3g %.3g \n\r",pos2x,pos2y,spe2x,spe2y);
rsean10 10:1fe988d4e61e 211 }