I had a very hard time figuring out how to use Pin-Change Interrupts. I found AVR documentation hard to follow, and Arduino libraries overly complicated and obfuscating. Here is an example of how to use pin-change interrupts for Arduino (mega). It may help.
Lastnight during hacknight we played a little bit with the small (5×5) vaccumformer (DentiFormer) i picked up off of craigslist. Its heater coil is burned out, and we didn’t have any of the proper thermoplastic sheets for it, but hunting around the lab we were able to find some various disposable meal containers, and water [...]
A while back, We got a ChipKIT box in the mail. Hmm, I thought: What could I do with such an interesting little device? I was mentally gone the entire month of november, due to working a major local event. So, after coming back to my senses I asked “What’s the catch?”
If you’ve seen any spy films from the 60s, or any heist films from the turn of the century, you’ve seen people pick a lock. If you’ve been to the Maker Faire (any of the Mini-Faires, or the larger coastal events), if you’ve read 2600, or if you’ve been in any group of people interested [...]
Do you have prints that don’t print?A pronterface that looks wrongterface? Well, you might have a bad mesh.
I ran into this when attempting to slice a whistle from Thingiverse: Slic3r would give me the ominous “Non-Manifold mesh” message and the printer would spaz out.
In order to undertand what’s going on, there should be [...]
If you follow the Hack-A-Day stream, you’ve probably seen the STM32F0Discovery board come up on occasion. I have two of these boards and I like them — they have what I need for basic stuff, but I wanted some more horse-power (and USB Host.) Quickly, to [...]
Taking the initiative to being more of an educational group, we’ve decided that Wednesday is now class day here at Quelab. Here on out, we want to have a class every Wednesday night after Co-Working.
So, to start it out I will be hosting a class on glass etching this coming Wednesday, starting at 7PM, [...]
Sadly we had one unknown, how much helium was inside the borrowed tank of helium. sadly it was about 1/2 the estimate. which was not enough lift for our project.
Oh well with all science there are setbacks! but we will do it again! and hopefully again… and again.
here are a few [...]
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