José Juan Sánchez Hernández

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How to calibrate a continuous rotation servo using NanoPlayBoard

September 30, 2016


This article shows you how to calibrate a continuous rotation servo using NanoPlayBoard. You can use the onboard potentiometer to move a servo to a specific degree.

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  • NanoPlayBoard.
  • 9v battery.
  • Continuous rotation servo.
  • Screwdriver.

Sketch

Upload this sketch on the NanoPlayBoard:

#include <NanoPlayBoard.h>

NanoPlayBoard board;

void setup() {

}

void loop() {
  int value = board.potentiometer.scaleTo(0, 180);
  board.ledmatrix.printInLandscape(value);
  board.servo[1].to(value);
}

The source code of this sketch is available on GitHub.

Set up connections

Step 1

Connect the servo to the NanoPlayBoard using the row of three male pins named as p4.

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Step 2

Connect the battery to the power socket on the NanoPlayBoard.

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Calibration process

  • Turn the onboard potentiometer until the 90 value is displayed on the led matrix.
  • The servo should stop when it receives a signal for 90 degrees. If your servo is still rotating you have to use a small Phillips head screwdriver and turn the potentiometer on the continuous rotation servo until it stop.

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