Packet radio example

I received an Arduino Uno for Christmas this year, so my Dad and I spent some of the holiday time doing some projects.  His job was to get a circuit built implementing a 74HC595 Shift Register and my task was to set up some RF communication.  Dad completed his project before I did, but as I’m on vacation all this week, I was able to finally get something up and running.

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Speech recognition part 1

Quite a while back, I used Jasper to create a speech recognition periodic table fun fact program.  That was before my website was revamped and I lost the original blog post.  (Well, I do have it in my backups, but it’s not really worth reviving at this point.)  I do have a video showing the results, however:

I’ve started to revisit this project, and here are my first thoughts…

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Spectrometer published

One of my DIY spectrometer designs was published in The MagPi.  You can view issue 24 here or you can check out this github link which contains the word document.

As one of my ‘loyal readers’ has pointed out (thanks Nick), the schematic in the MagPi has the LED in the wrong way.  Be sure to connect the negative side of the LED to Ground and the positive side to GPIO25.

Wolfspec 2.0

Wolfspec 2.0 – Spectrometry with the Raspicam

This post is a reprint of an article I wrote on my earlier website.  I’ve tried to update the links and images, but may have missed a few.

I recently purchased the camera that attaches to a Raspberry Pi and thought about how one might be able to make a spectrophotometer using the camera as a ccd-like detector. This work is still in progress, but with relatively few steps, I was able to get an instrument up and running (and even calibrated – sort of).

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