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[136] | 1 | /*
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| 2 | Speed by Potentiometer
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| 3 |
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| 4 | Control the robot's speed using the on-board
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| 5 | potentiometer. The speed will be printed on
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| 6 | the TFT screen.
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| 7 |
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| 8 | Circuit:
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| 9 | * Arduino Robot
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| 10 |
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| 11 | created 1 May 2013
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| 12 | by X. Yang
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| 13 | modified 12 May 2013
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| 14 | by D. Cuartielles
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| 15 |
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| 16 | This example is in the public domain
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| 17 | */
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| 18 |
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| 19 | #include <ArduinoRobot.h>
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| 20 | #include <Wire.h>
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| 21 | #include <SPI.h>
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| 22 |
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| 23 | void setup() {
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| 24 | // initialize the robot
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| 25 | Robot.begin();
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| 26 |
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| 27 | // initialize the screen
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| 28 | Robot.beginTFT();
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| 29 | }
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| 30 |
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| 31 | void loop() {
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| 32 | // read the value of the potentiometer
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| 33 | int val = map(Robot.knobRead(), 0, 1023, -255, 255);
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| 34 |
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| 35 | // print the value to the TFT screen
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| 36 | Robot.debugPrint(val);
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| 37 |
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| 38 | // set the same speed on both of the robot's wheels
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| 39 | Robot.motorsWrite(val, val);
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| 40 | delay(10);
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| 41 | }
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