Arduino Finds the Pole Star

Hello, I present to you the construction of a simple astronomical instrument, an instrument that uses the reverse principle of the sextant. A compass module and an accelerometer detect the cardinal point and position relative to the visible horizon, and a Neo 6M GPS module detects latitude. All three values ​​establish the exact position of the polar star, Polaris, indicated by an SG90 servomotor. The device can only be operated by viewing 2 LEDs with different colors. One for the indicator of the cardinal point and another for the indication of parallelism to the earth's surface. I chose this calibration mode because it is extremely difficult to look at the sky and at an Oled or any other kind of screen at the same time.

Mar 25, 2025

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Components and supplies

1

Blue LED

1

5mm Red LED

2

470 0hm

1

Servomotor Tower Pro SG 90

1

NEO 6M GPS MODULE

1

Arduino Nano

1

HMC 5883 COMPASS MODUKLE

1

Push Button

1

9 Volts Battery

Tools and machines

1

drill, screwdriver, soldering iron

Apps and platforms

1

Arduino IDE

1

Visuino - Graphical Development Environment for Arduino

Project description

Code

code

Documentation

SCHEMATIC DIAGRAM

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Image

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