Comments for Kris Barrett

Comment on Audio output selector by Kris

Kris — Thu, 26 Jan 2012 01:50:53 +0000

Thanks for the comment. Yes, all of the ground connections are connected together. The 3.5mm jacks should have 3 solder lugs: 1 for left audio, 1 for right audio, and 1 for ground. All of the ground lugs should be connected together.

Comment on Audio output selector by Trevor

Trevor — Wed, 25 Jan 2012 19:26:25 +0000

This is EXACTLY what I was looking for. Didn’t want to spend $20 + $20 shipping on a device I could make for a few bucks. Question: When you mention, “Even with the DPDT switch, the grounds are connected together at all times”, are the grounds for the jacks connected TO anything within the box (like, each other), or are they taken care of by the male connectors?

A little new to electronics.

Thanks

Comment on Audio output selector by Kris

Kris — Mon, 16 Jan 2012 03:26:28 +0000

I used Cadsoft Eagle which is fairly easy to use if you intend on making a printed circuit board. However, if you just want to make a simple drawing, it probably isn’t the best solution.

Comment on Audio output selector by Patrick

Patrick — Sun, 15 Jan 2012 06:57:59 +0000

What program did you use to make the drawing? I looking for a real simple cad type program for drawing such as this.

Comment on Audio output selector by Kris

Kris — Wed, 29 Jun 2011 18:40:50 +0000

Roochie, check your audio cable. You might be using a cable with TS jacks (mono). You can tell by looking at the jacks. The link below has a picture of 4 jacks. The jacks from left to right are: 2.5 mm TS, 3.5 mm TS, 3.5 mm TRS, and 6.35 mm TRS. All of your audio cables must have TRS jacks for stereo sound. Thanks for the comment!

http://en.wikipedia.org/wiki/File:Photo-audiojacks.jpg

Comment on Audio output selector by roochie

roochie — Tue, 28 Jun 2011 16:28:17 +0000

I’m trying to build my own audio switch which is essentially exactly the same as this one. Problem is when testing my TRS sockets, I get mono sound (i.e. audio is only coming out from my left speaker) I’ve checked my wiring over and over so I doubt its that. Could it be that my TRS socket only plays Mono? I just need clarification on whether there is are mono only sockets and stereo sockets.

Comment on Fun with FFT by Kris

Kris — Mon, 30 May 2011 22:51:40 +0000

Hi Dave,

I didn’t write my own FFT library. I used an existing library for Processing, so I am not sure if it can be expanded for PDSE. Sorry, I couldn’t be more helpful.

Thanks for the comment!

Kris

Comment on Fun with FFT by Dave Deriso

Dave Deriso — Sun, 29 May 2011 22:32:28 +0000

Hi Kris,

Awesome work! I was wondering if your DFT library was expandable for doing something like a Welch’s PSDE algorithm? (https://ccrma.stanford.edu/~jos/mdft/Power_Spectral_Density_Estimation.html).

Theres some discussion of this here:

http://neuroelec.com/2011/03/fft-library-for-arduino/

Thanks!!

Dave

Comment on How to make your own Arduino shield by john poole

john poole — Sat, 21 May 2011 23:39:56 +0000

great site, have do you use the instructable wed site/ i happened on your via a google of arduino shields.. great site.. thanks for taking the time..

Comment on How to make your own Arduino shield by Fatih

Fatih — Fri, 26 Nov 2010 01:59:02 +0000

Hi Kris!

This page is ranked 4th on the first page of results in Google for making arduino shields! Way to go!

– Fatih