[136] | 1 | /*
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| 2 |
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| 3 | TFT Color Picker
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| 4 |
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| 5 | This example for the Arduino screen reads the input of
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| 6 | potentiometers or analog sensors attached to A0, A1,
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| 7 | and A2 and uses the values to change the screen's color.
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| 8 |
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| 9 | This example code is in the public domain.
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| 10 |
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| 11 | Created 15 April 2013 by Scott Fitzgerald
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| 12 |
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| 13 | http://arduino.cc/en/Tutorial/TFTColorPicker
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| 14 |
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| 15 | */
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| 16 |
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| 17 | // pin definition for the Uno
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| 18 | #define cs 10
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| 19 | #define dc 9
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| 20 | #define rst 8
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| 21 |
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| 22 | // pin definition for the Leonardo
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| 23 | // #define cs 7
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| 24 | // #define dc 0
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| 25 | // #define rst 1
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| 26 |
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| 27 | #include <TFT.h> // Arduino LCD library
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| 28 | #include <SPI.h>
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| 29 |
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| 30 | TFT TFTscreen = TFT(cs, dc, rst);
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| 31 |
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| 32 | void setup() {
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| 33 | // begin serial communication
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| 34 | Serial.begin(9600);
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| 35 |
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| 36 | // initialize the display
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| 37 | TFTscreen.begin();
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| 38 |
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| 39 | // set the background to white
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| 40 | TFTscreen.background(255, 255, 255);
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| 41 |
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| 42 | }
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| 43 |
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| 44 | void loop() {
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| 45 |
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| 46 | // read the values from your sensors and scale them to 0-255
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| 47 | int redVal = map(analogRead(A0), 0, 1023, 0, 255);
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| 48 | int greenVal = map(analogRead(A1), 0, 1023, 0, 255);
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| 49 | int blueVal = map(analogRead(A2), 0, 1023, 0, 255);
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| 50 |
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| 51 | // draw the background based on the mapped values
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| 52 | TFTscreen.background(redVal, greenVal, blueVal);
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| 53 |
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| 54 | // send the values to the serial monitor
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| 55 | Serial.print("background(");
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| 56 | Serial.print(redVal);
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| 57 | Serial.print(" , ");
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| 58 | Serial.print(greenVal);
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| 59 | Serial.print(" , ");
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| 60 | Serial.print(blueVal);
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| 61 | Serial.println(")");
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| 62 |
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| 63 | // wait for a moment
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| 64 | delay(33);
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| 65 |
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| 66 | }
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| 67 |
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