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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 [...]
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 after Tom-Tom and Diana visited last weekend I now have the remainder of my tools and such so I’ll be working on the Parallel Port LCD project this weekend. It seems like I’ll probably need to power the display and backlight from the 9V battery anyway because the parallel port could be damaged if [...]
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!
After my multimeter broke last May I’ve been wanting to build my own…. I ended up replacing mine with a retail one of the same type because I needed it, but I still played with the idea with of designing my own. Here is what I have so far! It only has provisions for measuring [...]
This is a quick sketch I made up of a circuit to power and control a Red, Green and Blue LED with varying brightness. The processor at the core is an ATtiny2313 from Atmel. It will accept three numbers over a serial link and use that to set the brightness of the corresponding LED using [...]