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Diffstat (limited to 'libraries/Robot_Control/examples/explore/R05_Inputs/R05_Inputs.ino')
-rw-r--r-- | libraries/Robot_Control/examples/explore/R05_Inputs/R05_Inputs.ino | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/libraries/Robot_Control/examples/explore/R05_Inputs/R05_Inputs.ino b/libraries/Robot_Control/examples/explore/R05_Inputs/R05_Inputs.ino new file mode 100644 index 0000000..1359f8d --- /dev/null +++ b/libraries/Robot_Control/examples/explore/R05_Inputs/R05_Inputs.ino @@ -0,0 +1,166 @@ +/* Robot Inputs + + This sketch shows you how to use the on-board + potentiometer and buttons as inputs. + + Turning the potentiometer draws a clock-shaped + circle. The up and down buttons change the pitch, + while the left and right buttons change the tempo. + The middle button resets tempo and pitch. + + Circuit: + * Arduino Robot + + created 1 May 2013 + by X. Yang + modified 12 May 2013 + by D. Cuartielles + + This example is in the public domain + */ + +#include <ArduinoRobot.h> + +// default tempo and pitch of the music +int tempo = 60; +int pitch = 1000; + +void setup() { + // initialize the Robot, SD card, speaker, and display + Robot.begin(); + Robot.beginTFT(); + Robot.beginSpeaker(); + Robot.beginSD(); + + // draw "lg0.bmp" and "lg1.bmp" on the screen + Robot.displayLogos(); + + // play a sound file + Robot.playFile("Melody.sqm"); +} + +void loop() { + // check the value of the buttons + keyDown(Robot.keyboardRead()); + + // check the value of the pot + drawKnob(Robot.knobRead()); +} + +// Draw the basic interface +void renderUI() { + //fill the buttons blank + Robot.fill(255, 255, 255); + Robot.rect(53, 58, 13, 13); // left + Robot.rect(93, 58, 13, 13); // right + Robot.rect(73, 38, 13, 13); // up + Robot.circle(79, 64, 6); // middle + Robot.rect(73, 78, 13, 13); // down + Robot.circle(26, 116, 18); // knob + + //draw the vertical bargraph + int fullPart=map(pitch, 200, 2000, 0, 58); //length of filled bargraph + Robot.fill(255, 255, 255); + Robot.rect(21, 30, 13, 58-fullPart); + Robot.fill(0, 0, 255); + Robot.rect(21, 88-fullPart, 13, fullPart); //58-fullPart+30 + + //draw the horizontal bargraph + fullPart = map(tempo, 20, 100, 0, 58); // length of filled bargraph + Robot.fill(255, 190, 0); + Robot.rect(53, 110, fullPart, 13); + Robot.fill(255, 255, 255); + Robot.rect(53+fullPart, 110, 58-fullPart, 13); +} + +void keyDown(int keyCode) { + // use a static int so it is persistent over time + static int oldKey; + switch(keyCode) { + case BUTTON_LEFT: + //left button pressed, reduces tempo + tempo -= 5; + if(tempo < 20) tempo = 20; //lowest tempo 20 + Robot.fill(255,190,0); + + Robot.rect(53, 58, 13, 13); + break; + case BUTTON_RIGHT: + //right button pressed, increases tempo + tempo += 5; + if(tempo > 100) tempo = 100; //highest tempo 100 + Robot.fill(255,190,0); + Robot.rect(93, 58, 13, 13); + break; + case BUTTON_UP: + //up button pressed, increases pitch + pitch += 120; + if(pitch > 2000) pitch = 2000; + Robot.fill(0, 0, 255); + + Robot.rect(73, 38, 13, 13); + break; + case BUTTON_DOWN: + //down button pressed, reduces pitch + pitch -= 120; + if(pitch < 200){ + pitch = 200; + } + Robot.fill(0, 0, 255); + + Robot.rect(73, 78, 13, 13); + break; + case BUTTON_MIDDLE: + //middle button pressed, resets tempo and pitch + tempo = 60; + pitch = 1000; + Robot.fill(160,160,160); + + Robot.circle(79, 64, 6); + break; + case BUTTON_NONE: + //Only when the keys are released(thus BUTTON_NONE is + //encountered the first time), the interface will be + //re-drawn. + if(oldKey != BUTTON_NONE){ + renderUI(); + } + break; + } + if(oldKey != keyCode) { + // change the song's tempo + Robot.tempoWrite(tempo); + // change the song's pitch + Robot.tuneWrite(float(pitch/1000.0)); + } + oldKey = keyCode; +} + +void drawKnob(int val) { + static int x = 0, y = 0, val_old = 0; + // radian number, -3.14 to 3.14 + float ang = map(val, 0, 1023, -PI*1000, PI*1000) / 1000.0; + + // erase the old line + if (val_old != val) { + Robot.stroke(255, 255, 255); + Robot.line(26, 116, x, y); + } + + // the following lines avoid a glitch in the TFT library + // that seems to appear when drawing a vertical line + if (val < 1011 && val > 265 || val < 253) { + //a bit math for drawing the hand inside the clock + x = 16*sin(ang)+26; + y = 16*cos(ang)+116; + } + if (val > 265 && val < 253) { + x = 10; y = 116; + } + if (val >= 1011) { + x = 27; y = 100; + } + Robot.stroke(0, 0, 0); + Robot.line(26, 116, x, y); + val_old = val; +} |