[136] | 1 | /* Picture Browser
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| 2 |
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| 3 | You can make your own gallery/picture show with the
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| 4 | Robot. Put some pictures on the SD card, start the
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| 5 | sketch, they will diplay on the screen.
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| 6 |
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| 7 | Use the left/right buttons to navigate through the
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| 8 | previous and next images.
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| 9 |
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| 10 | Press up or down to enter a mode where you change
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| 11 | the pictures by rotating the robot.
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| 12 |
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| 13 | You can add your own pictures onto the SD card, and
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| 14 | view them in the Robot's gallery!
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| 15 |
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| 16 | Pictures must be uncompressed BMP, 24-bit color depth,
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| 17 | 160 pixels wide, and 128 pixels tall.
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| 18 |
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| 19 | They should be named as "picN.bmp". Replace 'N' with a
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| 20 | number between 0 and 9.
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| 21 |
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| 22 | The current code only supports 10 pictures. How would you
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| 23 | improve it to handle more?
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| 24 |
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| 25 | Circuit:
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| 26 | * Arduino Robot
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| 27 |
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| 28 | created 1 May 2013
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| 29 | by X. Yang
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| 30 | modified 12 May 2013
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| 31 | by D. Cuartielles
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| 32 |
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| 33 | This example is in the public domain
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| 34 | */
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| 35 |
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| 36 | #include <ArduinoRobot.h> // include the robot library
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| 37 | #include <Wire.h>
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| 38 | #include <SPI.h>
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| 39 |
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| 40 | const int NUM_PICS = 4; //Total number of pictures in Gallery
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| 41 |
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| 42 | // name the modes
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| 43 | const int CONTROL_MODE_KEY = 0;
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| 44 | const int CONTROL_MODE_COMPASS = 1;
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| 45 |
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| 46 | char buffer[] = "pic1.bmp"; // current file name
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| 47 | int i = 1; // Current gallery sequence counter
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| 48 | int mode = 0; // Current mode
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| 49 |
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| 50 | // text to display on screen
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| 51 | char modeNames[][9] = { "keyboard", "tilt " };
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| 52 |
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| 53 | void setup() {
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| 54 | // initialize the Robot, SD card, display, and speaker
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| 55 | Robot.beginSD();
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| 56 | Robot.beginTFT();
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| 57 | Robot.begin();
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| 58 |
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| 59 | // draw "lg0.bmp" and "lg1.bmp" on the screen
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| 60 | Robot.displayLogos();
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| 61 |
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| 62 | // draw init3.bmp from the SD card on the screen
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| 63 | Robot.drawBMP("init3.bmp", 0, 0);
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| 64 |
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| 65 | // display instructions
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| 66 | Robot.stroke(0, 0, 0);
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| 67 | Robot.text("The gallery\n\n has 2 modes, in\n keyboard mode, L/R\n key for switching\n pictures, U/D key\n for changing modes", 5, 5);
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| 68 | delay(6000);
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| 69 | Robot.clearScreen();
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| 70 | Robot.drawBMP("pb.bmp", 0, 0);
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| 71 | Robot.text("In tilt mode,\n quickly tilt the\n robot to switch\n pictures", 5, 5);
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| 72 | delay(4000);
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| 73 | }
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| 74 |
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| 75 | void loop() {
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| 76 | buffer[3] = '0' + i; // change filename of the img to be displayed
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| 77 | Robot.drawBMP(buffer, 0, 0); // draw the file on the screen
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| 78 | // change control modes
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| 79 | switch (mode) {
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| 80 | case CONTROL_MODE_COMPASS:
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| 81 | compassControl(3);
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| 82 | break;
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| 83 | case CONTROL_MODE_KEY:
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| 84 | keyboardControl();
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| 85 | break;
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| 86 | }
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| 87 | delay(200);
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| 88 | }
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| 89 |
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| 90 | void keyboardControl() {
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| 91 | //Use buttons to control the gallery
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| 92 | while (true) {
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| 93 | int keyPressed = Robot.keyboardRead(); // read the button values
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| 94 | switch (keyPressed) {
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| 95 | case BUTTON_LEFT: // display previous picture
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| 96 | if (--i < 1) i = NUM_PICS;
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| 97 | return;
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| 98 | case BUTTON_MIDDLE: // do nothing
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| 99 | case BUTTON_RIGHT: // display next picture
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| 100 | if (++i > NUM_PICS) i = 1;
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| 101 | return;
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| 102 | case BUTTON_UP: // change mode
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| 103 | changeMode(-1);
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| 104 | return;
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| 105 | case BUTTON_DOWN: // change mode
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| 106 | changeMode(1);
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| 107 | return;
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| 108 | }
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| 109 | }
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| 110 | }
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| 111 |
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| 112 | // if controlling by the compass
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| 113 | void compassControl(int change) {
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| 114 | // Rotate the robot to change the pictures
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| 115 | while (true) {
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| 116 | // read the value of the compass
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| 117 | int oldV = Robot.compassRead();
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| 118 |
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| 119 | //get the change of angle
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| 120 | int diff = Robot.compassRead() - oldV;
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| 121 | if (diff > 180) diff -= 360;
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| 122 | else if (diff < -180) diff += 360;
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| 123 |
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| 124 | if (abs(diff) > change) {
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| 125 | if (++i > NUM_PICS) i = 1;
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| 126 | return;
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| 127 | }
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| 128 |
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| 129 | // chage modes, if buttons are pressed
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| 130 | int keyPressed = Robot.keyboardRead();
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| 131 | switch (keyPressed) {
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| 132 | case BUTTON_UP:
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| 133 | changeMode(-1);
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| 134 | return;
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| 135 | case BUTTON_DOWN:
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| 136 | changeMode(1);
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| 137 | return;
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| 138 | }
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| 139 | delay(10);
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| 140 | }
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| 141 | }
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| 142 |
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| 143 | // Change the control mode and display it on the LCD
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| 144 | void changeMode(int changeDir) {
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| 145 | // alternate modes
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| 146 | mode += changeDir;
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| 147 | if (mode < 0) {
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| 148 | mode = 1;
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| 149 | } else if (mode > 1)
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| 150 | mode = 0;
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| 151 |
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| 152 | // display the mode on screen
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| 153 | Robot.fill(255, 255, 255);
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| 154 | Robot.stroke(255, 255, 255);
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| 155 | Robot.rect(0, 0, 128, 12);
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| 156 | Robot.stroke(0, 0, 0);
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| 157 | Robot.text("Control:", 2, 2);
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| 158 | Robot.text(modeNames[mode], 52, 2);
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| 159 | delay(1000);
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| 160 | }
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| 161 |
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