Comments for NovoKane

Comment on How to configure an XBee on Linux, Mac, or any other operating system by Julie Schulman

Julie Schulman — Tue, 21 Feb 2012 14:06:06 +0000

On a Mac, you just open Terminal. Its location is Applications > Utilities > Terminal.app, but if you didn’t know that, you probably shouldn’t be playing with it…

Comment on Automated LED stairs by Erica

Erica — Wed, 08 Feb 2012 22:30:18 +0000

You could certainly add a photocell, the Arduino has plenty of unused pins. I was not that interested in the PWM so I haven’t tried it, but I believe the LED IC chip has that — it’s pretty standard.

Comment on Automated LED stairs by Jim Mckay

Jim Mckay — Wed, 08 Feb 2012 19:30:56 +0000

Hi Did you get the PWM dimming working to fade the LED’s on and off. Also is it possible to have a photocell to check if daylight (and not light in that case)

Comment on Expanding the Arduino: cheap ways to add output pins and power by Patton

Patton — Wed, 08 Feb 2012 03:12:16 +0000

Fantastic.

Comment on Expanding the Arduino: cheap ways to add output pins and power by Erica

Erica — Wed, 08 Feb 2012 02:47:00 +0000

You’re welcome. For your last question, yes, my code certainly has multiple LEDs turning on and off at various points. The Arduino would not be very useful otherwise.

Comment on Expanding the Arduino: cheap ways to add output pins and power by Patton

Patton — Wed, 08 Feb 2012 02:37:22 +0000

You know what, I just thought of something that could greatly impact the project I am doing. Do you know whether or not the Arduino can activate multiple pins (“LEDs”) at the same time? For example, could you turn on every other LED simultaneously?

Comment on Expanding the Arduino: cheap ways to add output pins and power by Patton

Patton — Wed, 08 Feb 2012 02:07:51 +0000

That surely is a coincidence. I like it when site owners actually respond to their comments. Thank you.

Comment on Taking Stanford’s Artificial Intelligence course by Stanford and Sebastian Thrun offering more free online classes | NovoKane

Stanford and Sebastian Thrun offering more free online classes | NovoKane — Mon, 06 Feb 2012 05:07:00 +0000

[...] posted previously about the free AI class taught last fall by Sebastian Thrun and Peter Norvig. It was a marvelous [...]

Comment on Expanding the Arduino: cheap ways to add output pins and power by Erica

Erica — Mon, 06 Feb 2012 03:47:31 +0000

Patton, funny you should ask, as just yesterday I was looking at that very problem. You can't use the shift register I mention in this post for that purpose. However there are other chips that can do it. An analog multiplexer that I am looking at now is the 74HC4052. It uses 2 digital output pins from the Arduino and 2 input pins, and in return gives you 8 analog or digital inputs that can be listened to. Costs less than 25 cents. Note that you can only listen to 2 of the 8 channels at a given time, but for most situations that is just fine. Again, much cheaper than a Mega!

Comment on Expanding the Arduino: cheap ways to add output pins and power by Patton

Patton — Mon, 06 Feb 2012 02:25:21 +0000

Can those extra pins be used as inputs?