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SPI library to the new format and moved Robot_Motor and Robot_Control libraries
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/* Robot Inputs
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This sketch shows you how to use the on-board
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potentiometer and buttons as inputs.
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Turning the potentiometer draws a clock-shaped
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circle. The up and down buttons change the pitch,
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while the left and right buttons change the tempo.
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The middle button resets tempo and pitch.
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Circuit:
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* Arduino Robot
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created 1 May 2013
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by X. Yang
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modified 12 May 2013
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by D. Cuartielles
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This example is in the public domain
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*/
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#include <ArduinoRobot.h>
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// default tempo and pitch of the music
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int tempo = 60;
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int pitch = 1000;
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void setup() {
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// initialize the Robot, SD card, speaker, and display
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Robot.begin();
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Robot.beginTFT();
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Robot.beginSpeaker();
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Robot.beginSD();
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// draw "lg0.bmp" and "lg1.bmp" on the screen
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Robot.displayLogos();
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// play a sound file
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Robot.playFile("Melody.sqm");
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}
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void loop() {
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// check the value of the buttons
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keyDown(Robot.keyboardRead());
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// check the value of the pot
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drawKnob(Robot.knobRead());
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}
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// Draw the basic interface
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void renderUI() {
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//fill the buttons blank
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Robot.fill(255, 255, 255);
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Robot.rect(53, 58, 13, 13); // left
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Robot.rect(93, 58, 13, 13); // right
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Robot.rect(73, 38, 13, 13); // up
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Robot.circle(79, 64, 6); // middle
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Robot.rect(73, 78, 13, 13); // down
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Robot.circle(26, 116, 18); // knob
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//draw the vertical bargraph
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int fullPart=map(pitch, 200, 2000, 0, 58); //length of filled bargraph
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Robot.fill(255, 255, 255);
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Robot.rect(21, 30, 13, 58-fullPart);
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Robot.fill(0, 0, 255);
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Robot.rect(21, 88-fullPart, 13, fullPart); //58-fullPart+30
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//draw the horizontal bargraph
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fullPart = map(tempo, 20, 100, 0, 58); // length of filled bargraph
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Robot.fill(255, 190, 0);
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Robot.rect(53, 110, fullPart, 13);
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Robot.fill(255, 255, 255);
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Robot.rect(53+fullPart, 110, 58-fullPart, 13);
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}
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void keyDown(int keyCode) {
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// use a static int so it is persistent over time
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static int oldKey;
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switch(keyCode) {
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case BUTTON_LEFT:
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//left button pressed, reduces tempo
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tempo -= 5;
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if(tempo < 20) tempo = 20; //lowest tempo 20
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Robot.fill(255,190,0);
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Robot.rect(53, 58, 13, 13);
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break;
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case BUTTON_RIGHT:
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//right button pressed, increases tempo
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tempo += 5;
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if(tempo > 100) tempo = 100; //highest tempo 100
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Robot.fill(255,190,0);
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Robot.rect(93, 58, 13, 13);
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break;
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case BUTTON_UP:
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//up button pressed, increases pitch
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pitch += 120;
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if(pitch > 2000) pitch = 2000;
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Robot.fill(0, 0, 255);
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Robot.rect(73, 38, 13, 13);
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break;
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case BUTTON_DOWN:
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//down button pressed, reduces pitch
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pitch -= 120;
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if(pitch < 200){
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pitch = 200;
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}
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Robot.fill(0, 0, 255);
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Robot.rect(73, 78, 13, 13);
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break;
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case BUTTON_MIDDLE:
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//middle button pressed, resets tempo and pitch
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tempo = 60;
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pitch = 1000;
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Robot.fill(160,160,160);
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Robot.circle(79, 64, 6);
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break;
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case BUTTON_NONE:
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//Only when the keys are released(thus BUTTON_NONE is
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//encountered the first time), the interface will be
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//re-drawn.
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if(oldKey != BUTTON_NONE){
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renderUI();
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}
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break;
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}
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if(oldKey != keyCode) {
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// change the song's tempo
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Robot.tempoWrite(tempo);
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// change the song's pitch
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Robot.tuneWrite(float(pitch/1000.0));
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}
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oldKey = keyCode;
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}
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void drawKnob(int val) {
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static int x = 0, y = 0, val_old = 0;
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// radian number, -3.14 to 3.14
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float ang = map(val, 0, 1023, -PI*1000, PI*1000) / 1000.0;
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// erase the old line
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if (val_old != val) {
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Robot.stroke(255, 255, 255);
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Robot.line(26, 116, x, y);
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}
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// the following lines avoid a glitch in the TFT library
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// that seems to appear when drawing a vertical line
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if (val < 1011 && val > 265 || val < 253) {
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//a bit math for drawing the hand inside the clock
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x = 16*sin(ang)+26;
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y = 16*cos(ang)+116;
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}
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if (val > 265 && val < 253) {
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x = 10; y = 116;
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}
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if (val >= 1011) {
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x = 27; y = 100;
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}
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Robot.stroke(0, 0, 0);
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Robot.line(26, 116, x, y);
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val_old = val;
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}
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