Gorgeous work ... I'm betting that 99% of those traces are digital, right?

More like 80%.

 

Think I see a bug, that is error. Can you find it?

The extra via under the right side of R302?
I'm not sure its purpose..

 

The extra via under the right side of R302?
I'm not sure its purpose..

You can't see the blue line tracking the red one right underneath it.

 

You can't see the blue line tracking the red one right underneath it.

Nope.. and if there is then the 3.3V and 5V nets are common..

 

Nope.. and if there is then the 3.3V and 5V nets are common..

Good job, and good eyes! No, there is no blue line underneath, and the via and track serve no purpose.

IIRC, I changed the location of that 3.3V bus. I missed deleting that via and track.

No biggie. It affects nothing, but damn good catch.

 

2 days of work (4" x 3"):

View attachment 149545

 

View attachment 152348

WOW! ... congrats!

 

WOW! ... congrats!

It ain't working yet -- just assembled today. Still writing code.

CPU runs, +5V switcher working. +12V switcher gets hot when I turn it on (under CPU control). I don't know why yet -- probably just a solder short.

I haven't hooked up the new transducer to it yet. That gets done last after everything else works.

 

View attachment 152348

So where did you get that fabricated? And if you don’t mind, how much did they charge? Just curious.

 

So where did you get that fabricated? And if you don’t mind, how much did they charge? Just curious.

The boards were done at Advanced Circuits (4pcb.com) for $33 ea.

I did the assembly.

 

I did the assembly.

Now that is impressive ... what kind/brand of solder did you use?

 

Now that is impressive ...

Ditto. I'd need a dissecting 'scope to be able to work at that level.

 

Ditto. I'd need a dissecting 'scope to be able to work at that level.

I use something like this:

 

what kind/brand of solder did you use?

Whatever was lying around.

And I have a Pace solder station:

 

I use something like this:

A rose by any other name... That IS a dissecting microscope if you've had a biology background. Anyway, a helluva a lot nicer than what I use:

 

I did the assembly.

Now that is impressive ... what kind/brand of solder did you use?

A rose by any other name... That IS a dissecting microscope if you've had a biology background. Anyway, a helluva a lot nicer than what I use:

I have a -4.75 prescription on my left eye ... so all I have to do is take off my glasses, and voilá! ... instant microscope

 

 

Do you want to play a game?

 

Back in the early 2000s....I bought some dragon-something software that was a speech to text converter and audio command control of window functions. Hands free computer operation......like on tv. It was expensive too.

Anyhow......there was a 40 min or so learning exercise, which consisted of reading certain sentences, until software learned your voice patterns. Then software would give you a new sentence and so on.

Got all the way thru til the last sentence......."Open the pod bay doors, Hal". I stated the words and computer said "please say again", which was normal, and after a few times....software would give new sentence. So I repeated it......and it requested another repeat, which I did.

Finally....after the last saying of open the pod bay doors, hal.............the computer said......."Sorry, I can't do that, Dave".

Knocked me over.

Never did use it.....just not as fast as clicks.

 

View attachment 152407

Sooooo, by any chance have you named it Skynet ?