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So, last night we made the totally irrational and silly (and awesome) snap decision to make a homebrew PCB for this controller. I spend quite a while laying it out, minimizing traces on the top to connections we can make with wire if we don’t see dual layer homebrew working out. I completed the first [...]
As I mentioned in my previous post, I’ve been working no this controller for the K2CC balloon launch. I’ve made some more progress this week, with final integration of all the sensors in to the same set of firmware, and the first of the weird bugs cropping up. As it’s pretty late, I’m not going [...]
One of the biggest projects my schools amateur radio club, K2CC, has taken on this semester is launching a High-Altitude Weather Balloon to capture photos and sensor data from altitudes as high as 20 miles. I have been working with a team of people to design, build and program a microcontroller powered instrument pack. Over [...]
Been a busy morning for me, updating the blog and such, but now the Workbench page is up under projects, take a look!
Last night I had an empty bottle of Jones Soda on my desk, so I rinsed it out and filled it with cool water. Then I took one of my super bright blue LEDs and suspended it over the mouth of the bottle at full brightness. It turned to look pretty cool, and in the [...]
A friend (Tyler, KB1HCY) recently dug out his old Gumstix single board computer and expressed a desire to see if it still worked. So, also being curious, I invited him and Pat Wilbur (KC2OXM) over to try it out at my place. For the record we’re using an unknown model of Gumstix with an Audiostix [...]
It’s been quite a while since I’ve posted, it’s been really crazy at school. I’m gearing up for my graduation in May, and things are getting down to that final sprint through April. I’ll go over a couple updates from recently and tell you what I’m planning. Component Reorganization I’ve done some more work on [...]
Well the other night I got some free time, so I put together a quick prototype of my audio mixer circuit. I followed my original design pretty closely with a couple exceptions, I only used the right audio channel for everything, and I have no volume control of any kind. My goal was just to [...]
Backstory Back in 2008, K2CC was planning on putting up a motorized satellite tracking tower that would point various direction antennas at a satellite and follow it through the sky for operating satellites down in the shack. As part of this plan, K2CC had a panel made with several feed-line connectors, 15 to be exact. [...]
I’ve posted the next guide, this one is on Light Emitting Diodes (LEDs) and is available here. Enjoy, soon I’ll be posting some project updates, had a very busy few days working on the D-STAR system, and we had a very successful test today/yesterday.