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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 [...]
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 [...]
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.
So, my good friend Greg Linder, who has a Masters Degree in Electrical Engineering, has started his own tech blog to teach people how to construct electronic things, from soldering to boxing it up, and all the good stuff in between. In the spirit of promoting learning, and competing with Greg (mostly to make sure [...]
Well, since I was writing the projects page I thought I’d write a quick post detailing the latest developments on my projects. This pertains to Mini-DMX, The DSTAR Heat-map and my mixer mostly. Mini-DMX I’ve got the rest of the layout drawn up on my little perfboard planning sheet. After my break this weekend when [...]
Received my SparkFun order today, amongst the contents were the things I was seeking most, several 10k breadboard compatible potentiometers, three dual op-amps (LM358), three super bright 10mm LEDs (One red, green and blue) as well as a few other toys. The two biggest deals are the opamps and the potentiometers, while not strictly the [...]
Here is a sketch I made up on the back of some weird letter from a college about something… I dunno. It’s the basics of the idea cooking in my head for how to make the Ohmmeter for this project! Enjoy!