I'm... I'm blown away. YOU guys think MY stuff is awesome...? Holy crap. I'm the smallest fry in the bin.

I've got a lifetime total of maybe an hour of futzing with microcontrollers -- and I'm being generous there! 90% of what I know how to make is discrete logic or transistors-only or relay crap. Probably my most complicated circuit ever is a relay adder-subtracter that has a rotary phone dial as input. (Never have been able to build it -- I'm actually fairly poor so being able to build anything is an event of near-legendary proportions...)

Seriously. I'm the sort of electronics hobbyist that has to look up circuits on the 'Net and then tweak them or combine them to get what I want. I'm not sure I'm even qualifiable as "little league" here -- I'm the hardware equivalent of a script kiddie, maybe. I think I might actually be a level or two below that...

The schematics that you say are "awesome" are a combination of six parts Wikipedia, five parts general Internet (with tweaking), one part pinouts[dot]ru, one part from a Forrest Mims book, three parts sheer unadulterated guesswork, and two parts straight off the EOMA-68 wiki page. I can't say myself if it's awesome or not, but to me it looks like a total kludge :P

Oh yeah -- one idea I had to make assembly even easier (definitely need a PCB for this, hand wiring it would be a nightmare) -- socket the R-2R ladders -- so one DIP-16 socket for the input 2Rs and another for the column of Rs and the 2R at the end. Makes things more compact, and it's super easy to replace resistors if they're faulty someday.

If you can link me to the Olimex schematic, I can try to understand it and adapt it, but I'm not promising anything. I'm a very visual person so words describing it will probably not work anywhere near as well -- I'll probably just be extremely confused. I can look up pinouts and read datasheets and put it together like a jigsaw puzzle in my head, and that's the best way for me 'cause that's what I'm used to ;)

On 10/16/2013 5:02 AM, luke.leighton wrote: