So I bought a 3D printer kit from MakerFarm a few weeks ago. It got shipped to my apartment while I was on vacation, so I spent the last week[^not really] putting it together. It's a Prussa i3v with 8" bed and a 0.4 mm hexagon hot end that should be capable of extruding some interesting filaments.
I frequently use public transportation, and one of my pet peeves is leaving my apartment, turning the corner and noticing that the bus I want to take is just leaving the stop. The bus company recently started real-time tracking of their buses, so if I remember to check the website, I'll be more prepared. Since that if often becomes an unlikely, I needed a less user-interactive solution. Enter the Raspberry Pi, an Adafruit LCD Plate and a little bit of web crawling with Python.
I'm interested in determining some of the specifications of my home-made digital microscope. I got a hold of a microscope reference slide and thought that I'd use a little bit of Mathematica to learn something about my instrument.
I published this article on the Wolfram Community site a while back since I was running in to problems with publishing here. I've since fixed those issues (with the help of a new Markdown editor) so I've reposted the article here just for fun - and to try out the new Markdown editor.
There are a number of websites out there that take advantage of the lens of a low-end laser pointer, using it as a macro lens for phone cameras and such. None that I found, however, mentioned that the lens is just the right size to fit inside a Lego...
I wanted to see if it would be possible to create a makeshift remote sensing device using Wolfram on the Raspberry Pi. Toss in VNC and some earlier code that I've written and here's what I came up with.
In part 2 of this series, I demonstrated the basic use of custom defined characters. Now I want to exploit the custom characters to make a fully customized display. It isn't going to be easy because we've got 8 custom characters and 32 character spaces to fill. In the end, we see the limitations of this setup (or more precisely, the limitations of me writing the code for this setup), but hopefully end up with some useful tools.
I've been having some problems configuring the optimal fan speeds on my computer. Part of the issue is that I have no way of seeing temperature changes while I'm using full-screen applications. A little help from Wolfram, a Raspberry Pi and Adafruit's LCDPiPlate got me the information I needed.
The Raspberry Pi (model B) has only 2 USB ports, which makes connecting a mouse, keyboard and WiFi dongle challenging. In the end, many folks go for the powered USB hub solution, but I find that there are times I want to slim down the wires and components that I'm carrying, and I'm always carrying my iPod touch, so why not take advantage of that?
Back in the day when we didn't have mobile devices to occupy our time on the trip to our family vacation destination, we had to entertain ourselves with pen and paper. I liked Mad Libs back then, and have recently been thinking about how we can use the same idea to teach kids about science projects.
In part 1 of this series I showed how one can create some basic functions to direct text output from Mathematica to an LCD display attached to a Raspberry Pi. In this part of the series I will focus on building custom characters. Before that, however, I'd like to take a brief look at how the functions in lcdlink behave when incorporated into Mathematica's dynamic features.
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