Rettger Galactic Today the World, Tomorrow the Galaxy!

A Moving Timelapse Rig With Arduino

A few weeks ago I was eating a grapefruit when I noticed that several of the seeds inside were sprouting. I pulled them out and put them in a plastic bag to sprout, and started to wonder what I

Here’s a fun project I just finished working on. It’s an Android and Raspberry Pi powered gumball machine. There’s not much to the Android app right now because the gumball part is being integrated into an existing app. The

It’s finally here! I pre-ordered my Shapeoko 2 in November and it shipped out last week. I got it put together and have had a few days to play with it. So far it’s great! I was never able

Android Controlled Roomba – Telepresence Robot Demo

Today I wanted to share a project I’ve been working on for the last couple months. At the company I work for, our main office is in Chicago, but the director of development lives and works in Toronto. We

A Moving Timelapse Rig With Arduino

A few weeks ago I was eating a grapefruit when I noticed that several of the seeds inside were

Sep 9, 2014

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OnePlus One Review

If you’ve been following the latest Android gadget news, you’ve probably heard about the new “Flagship Killer” phone, the

Jul 28, 2014

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A Raspberry Pi Powered Gumball Machine

Here’s a fun project I just finished working on. It’s an Android and Raspberry Pi powered gumball machine. There’s

Apr 7, 2014

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Getting Started With CNC Router Bits

Selecting which bits to use for a CNC project is a common source of frustration for a lot of

Apr 7, 2014

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Quick Shapeoko DW660 Spindle Mount

So the stock Z axis on the Shapeoko 2 doesn’t fit larger tools like the Dewalt DW660 or the

Feb 24, 2014

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Tutorial: How To Create A Database With PHP & MySQL – Part 3

This is the third and final part of my tutorial series on creating a database with PHP and MySQL.

Feb 23, 2014

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Tutorial: How To Create A Database With PHP & MySQL – Part 2

This is the second part of my tutorial on how to create a database with PHP and MySQL. If

Feb 23, 2014

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Tutorial: How To Create A Database With PHP & MySQL – Part 1

One of my goals here at Rettger Galactic is to make programming fun and accessible to everyone. I showcase

Feb 23, 2014

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Simple Fix For Arduino Motor Shield Problem

If you’re using the Arduino Motor Shield and wracking your brain trying to figure out why your motors aren’t

Feb 19, 2014

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How To Auto Connect To A Chromecast Device In Android

Here’s a handy feature that’s not well documented yet. Let’s say you’re making an Android app that needs to

Feb 18, 2014

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Shapeoko 2 Review

It’s finally here! I pre-ordered my Shapeoko 2 in November and it shipped out last week. I got it

Jan 30, 2014

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How A Transistor Works

Okay, this is too cool not to share. Have you ever wondered how a transistor works? I’ve actually looked

Jul 11, 2013

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