Show Posts
Pages: 1 2 [3] 4 5 ... 15
31  Using Arduino / General Electronics / Re: Options for inexpensive PCB assembly on: July 19, 2013, 01:42:21 am
Single or double sided?
I've helped other forum members with single sided designs.  They provide all the materials and I'll reflow the boards.

What do you use to clean the boards after?
32  Using Arduino / General Electronics / Re: Options for inexpensive PCB assembly on: July 19, 2013, 01:41:16 am
Try www.cbas-usa.com in CA.
Expect $350-400 for pick & place programming & solderpaste template creation, then $5-6/board for actual assembly.

We pay $285 just to get stencils, so I wonder if your prices are realistic in the US.
33  Using Arduino / General Electronics / Re: Options for inexpensive PCB assembly on: July 19, 2013, 01:39:46 am

sent a PM
34  Using Arduino / Networking, Protocols, and Devices / wifi232 boards example code? on: July 14, 2013, 01:44:32 am

I see these low cost wifi cards:
http://en.usr.cn/Wifi-RS232-converter-module/Industry-wifi-to-uart-adapter-module-antenna-on-board.htm

Is there any example code anywhere to run one in AP mode, hooked to an Arduino, and see a sensor value over wifi from my computer?

35  Using Arduino / General Electronics / Re: LED different voltage resistor value on: June 28, 2013, 08:40:51 pm
Why not use constant current, LED driver IC to replace resistor.

Simple 90V, 25mA, Temperature Compensated, Constant Current, LED Driver IC - CL25

Power supply  5 V to 90 V.

CL25, Mouse, $0.71

curious why is this better than using a resistor.
36  Using Arduino / Audio / Re: MIDI Reset on: June 22, 2013, 03:04:43 pm
I'm not sure that's the correct all notes off command.
37  Using Arduino / Audio / Re: MIDI Reset on: June 22, 2013, 02:03:05 pm
If a note on an external device is tuck, you have send something to stop it. Resetting your arduino device won't change that.
38  Community / Gigs and Collaborations / Re: Music Projects on: June 22, 2013, 03:07:20 am
What did you have in mind?
39  Using Arduino / Audio / Re: MIDI Reset on: June 22, 2013, 02:52:56 am
some things send all notes off command. other things send every note with a velocity of 0.
40  Using Arduino / General Electronics / Re: Arduino To Trigger Transistor - Resistor Needed? on: June 22, 2013, 02:07:56 am
There's usually a .7v drop, emitter to collector.
41  Using Arduino / General Electronics / Re: pot wiring on: June 21, 2013, 09:17:17 pm
That can be changed in software easily enough.  I'm thinking that you want the lowest amount of voltage to the wiper when pot is all the way down. Seems most logical that way around, so pin 1 to gnd.
42  Using Arduino / General Electronics / pot wiring on: June 21, 2013, 08:48:33 pm
Is there an accepted standard for pot wiring?

Is it:
pin1 5v
pin2 wiper
pin3 GND

or:
pin1 GND
pin2 wiper
pin3 5v

Any reasons?
43  Using Arduino / General Electronics / Re: Filtering 5V and 12V in a noisy automotive environment on: April 08, 2013, 09:44:37 am

Most of us - especially us working in real production- have to use large US distributors like Digikey, and that's what I based my pricing on.
44  Using Arduino / General Electronics / Re: Filtering 5V and 12V in a noisy automotive environment on: April 07, 2013, 11:41:07 pm
I'd guess a coil and a cap are under $2.
45  Using Arduino / General Electronics / Re: Filtering 5V and 12V in a noisy automotive environment on: April 07, 2013, 11:07:41 pm

Sure, but a DC-DC converter will cost a lot more.
Pages: 1 2 [3] 4 5 ... 15