Can we follow the movement of magnetic north?

A laser is placed on a huge magnetic needle. The laser greatly amplifies any movement. The detector is a series of 40 light dependent resistors, which are logically tied to a physical location. The data from the Arduino C++ goes out to Python. The Python adds a UNIX time stamp, and this is all put in a sqlite3 database. It is presently programmed for a reading every thirty minutes. I have seen the laser move more than a degree (60 minutes) in 24 hours. Help!

Nov 10, 2023

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CC BY 4+

Components and supplies

49

5k Ohm resistor

4

neodymiom magents

49

LDR Resistor

2

JQC-3FF-S-Z

1

laser level

Apps and platforms

1

Sqlite

1

Python IDLE

Project description

Code

Arduino 42 LDR sensors

cpp

to be added later

data to Python to sqlite3

python

to be added later

Downloadable files

Arduino wiring

fritzing to .jpg ... cool package

wiring fritzing .jpg

focus on LDRs

The LDR circuits are all the same

simplified mega_bb.jpg

Documentation

Magnetic North project narrative

This is my personal journal for Magnetic north

https://app.box.com/s/mos93yuku6abcpk8q3h52hzg8srxsl6k

magnetic needle

This is tucked away in basment

magnetic needle jpg.jpg

first data

see Data Documentation

very preliminary data for project.png

data discussion

this is preliminary data

data narrative for project.pdf

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