Took me long enough to get to this, but now I'm ready to start working on code. Might even do that tonight, unless I meet the woman of dreams at the grocery store. Yeah, coding.
That's the proto-screwshield from Adafruit. I relocated the reset button, and made cutouts for the USB port and power jack. And a TI dual inverter on the breadboard.
What's the plate its mounted on?
Just a piece of aluminum I had laying around.
You mean, a big heat sink for your offboard regulator 8)
Heh. Well, it would certainly do that. I don't, at the moment, have anything in mind that would be dissipating a lot of heat. I'm open to suggestions, particularly if they involve laser beams. ]
Laser beams, yeah, they need decent power supplies ...
Well, I wired it up sort of like your circuit here. Except I have a 220? R for the green, and a 330? for the red, to try to balance the intensity a bit. Kinda makes me go meh as a quickie visual indicator of over/under temp, which is where I was hoping to use this -- right now, I'm using a pot as a proxy for a temp. sensor. The shading is somewhat poorly mixed, so the yellow midpoint doesn't really look yellow.
Might be I'll need to go for a RGB LED, so I can ramp the color more clearly away from the OK state.
But I didn't let any smoke out.
So it was a decent learning event anyway.
Oh yeah. I learned how much easier it is to solder SMD components when you pre-flux them. And how to load a new bootloader. And how not to hang your board by saturating the TX on the USB.
Next up, one-wire.