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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