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31  Using Arduino / General Electronics / Re: schematic review, bare bones + 3v + nrfl01 + usb power on: January 02, 2013, 10:08:01 pm
I think those circles are silkscreen indicating 100mil male headers, that he plans not to actually install.
32  Using Arduino / General Electronics / Re: schematic review, bare bones + 3v + nrfl01 + usb power on: January 02, 2013, 01:30:03 am

I meant a .1u on output of regulator for noise filtering.

Decoupling is usually near body of a chip on VCC lines. I suppose ideally on 7 and 20, but it's not always done.
33  Using Arduino / General Electronics / Re: schematic review, bare bones + 3v + nrfl01 + usb power on: January 01, 2013, 09:55:05 pm
.1 on out of reg? Also, some decoupling on VCC seems prudent.
34  Using Arduino / General Electronics / Re: schematic review, bare bones + 3v + nrfl01 + usb power on: January 01, 2013, 09:51:36 pm
It does look like it's ok on some boards to leave unconnected, but maybe good practice to do something with it.
35  Using Arduino / General Electronics / Re: parts sources on: January 01, 2013, 05:15:39 pm
Futurlec sent me completely wrong order this week, and no response from them yet.
36  Using Arduino / General Electronics / Re: schematic review, bare bones + 3v + nrfl01 + usb power on: January 01, 2013, 05:06:55 pm
Is it ok to leave AREF floating?
37  Using Arduino / General Electronics / Re: TDA2822 Audio Amp on: December 29, 2012, 03:07:43 am
Speaker hooked up to just 1 and 3?
38  Using Arduino / General Electronics / Re: Chinese Pcb Manufacturer Reccomendation. on: December 08, 2012, 11:38:16 pm
Is Sitopway cheap for small quantity prototyping?

Let's say 2x3", 10 pcs. Any idea what that would cost?
39  Development / Other Software Development / Re: how to go to STM32 / Arm on: October 04, 2012, 08:31:28 pm
How does one choose from so many if these IDE's?  
I'm sure that one is nice, but it's $$ - the free ones not usable?

As far as upgrading, I'm not. Ardunos have a great place for the low end, and I want both ends of the spectrum. A second car if you will.
Can you suggest a "Chevy" forum?
40  Development / Other Software Development / how to go to STM32 / Arm on: October 04, 2012, 09:44:58 am
I'd like to play around with higher end processors like the STM32.

Any idea what the next logical step is for me?
What IDE?

Is there some basic article anywhere to help me make this jump?
41  Using Arduino / General Electronics / lots of wire needed on: September 13, 2012, 08:05:29 pm

Has anyone seen a low cost foreign company for 18g stranded wire in many different colors?
Someone with pricing along the lines of Tayda, DealExtreme etc, but we need thousands of feet at a lower cost than the normal US sources.

Thanks
42  Using Arduino / General Electronics / Re: What's the name of the jack that... on: July 24, 2012, 09:56:20 am

Today seems like a good day for a plug vs jack definition.

OP asked for a jack, and people are offering info on getting plugs.  smiley
43  Using Arduino / General Electronics / Re: What's the name of the jack that... on: July 24, 2012, 01:38:05 am
CONN PWR JACK 2.1X5.5MM HIGH CUR
44  Using Arduino / General Electronics / Re: opposite of transistor switch on: July 24, 2012, 12:30:15 am
Quote from: Grumpy_Mike on July 23, 2012, 04:45:45 pm
You could use a depletion mode FET but I think these are rare nowadays, and anyway it will not do what you want.

I guess I don't agree.
What wrong with a depletion jfet with source and drain to pass high side signal? Gate down, audio passes.
45  Using Arduino / General Electronics / Re: opposite of transistor switch on: July 23, 2012, 01:10:02 am
Quote from: sdinnu on July 22, 2012, 09:09:05 pm
I finally learned some of the differences between mosfets, jfets, and transistors. It seems like the best thing for me to use is a P-channel mosfet or a P-channel JFET

Yes, a P channel Jfet will work nicely.
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