The new official deployment of SlatePermutate is now live on slatepermutate.org! Course data is available for the following institutions, with more to come soon: Calvin College Cedarville University Community College of Baltimore County Hope College Michigan State University University of…
![[protofusion]](http://protofusion.org/wordpress/wp-content/uploads/2013/02/protofusion-text2.png)
Blog Archives
Gaggia Classic Disassembly and Cleaning
I recently purchased a used Gaggia Classic machine on Amazon. After realizing that it was not as “lightly used” as the seller denoted, I took apart the entire machine to clean it up. I’ve written this guide as a teardown…
Arduino Leonardo – Interrupts
As of Arduino 1.0, interrupts are not supported on the Arduino Leonardo. I’m working on a project using the atmega32u4 with the Arduino IDE which needs interrupt support for both software serial and frequency counting, so I investigated ways to…
ZonCoffee v3 PCB
The first prototype ZonCoffee v3 boards have arrived and are nearly up and running. I’m currently porting the code over to Arduino 1.0, as this board uses the Arduino Leonardo bootloader. Read on past the break for more info on the…
Repairing a Sigma 24-70 EX Lens
I acquired a free Sigma 24-70 f/2.8 lens that had a few issues–namely, autofocus was broken and the zoom was incredibly hard to turn. After using the lens in full manual for a while, I determined that I would attempt…
DIY Cheap Reservoir Irrigation
When you’re trying to grow a bunch of plants in a field where a water source is lacking, things can be a bit tough. Hauling water on-site is a very arduous process, even with a tractor/trailer full of buckets. After…
MNL: Networked LED Lighting
MNL is a multi-node high-power RGB lighting system. It consists of a controller (PC or embedded system) and multiple light nodes networked with RS485. The first prototype nodes are up and running, and we will be developing the second revision…
PCB Desktop Background
Want a nice hearty printed circuit board desktop background? Well, here you go (right-click, save as). The PCB is an older Arduino NG board placed on top of one of our 10W MNLC lighting nodes (still under development, more information…
tinyRGB – an i2c LED driver
tinyRGB is a minimalist blinkM-compatible high-current i2c RGB LED controller consisting of only 10 basic components. The board is small and inexpensive, can be fabricated for as little as $1/board, and can easily be assembled by hand with a total…
ZonCoffee PCB
The ZonCoffee espresso PID controller board has been fabbed!