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The doubt was came in mind after seeing Arduino documentation. I have to turn my Arduino uno robot 20 degrees without using encoders. So I surfed on Internet for how can I do that. Interestingly I found the reference available on above link. They are not saying about any specific Arduino board. So I have to know that can I do this stuff on my Arduino uno? Also I have to know is that every Arduino comes with onboard compass?

  • No, there is no built-in compass on an arduino microcontroller. However, you can interface the arduino with a magnetometer sensor to measure the direction of the earth's magnetic field, and use that as a compass. – MichaelT Feb 5 '19 at 18:16
  • If you simply want to obtain a controlled rotation then use a stepper motor. – MichaelT Feb 5 '19 at 18:17
  • the documentation is for this hardware store.arduino.cc/arduino-robot – Juraj Feb 5 '19 at 18:19
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No current Arduino board comes with an on-board compass. That function description comes from the documentation for the Arduino Robot, which is a retired product.

There may be other "maker" dev boards, such as the Adafruit Circuit Playground Express which have on-board compass peripherals.

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