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1  Using Arduino / Microcontrollers / Re: Just got my first Pro Mini's. Now how to program them? on: August 21, 2011, 10:07:35 pm
Added the pins. Plugged in, this led briefly flashes green:



Then this led stays red:



But nothing happens on the computer end.
2  Using Arduino / Microcontrollers / Re: Just got my first Pro Mini's. Now how to program them? on: August 21, 2011, 09:25:52 pm
Ok, right angle pins are pretty awesome. I have straight pins that won't fit where I need, but I'll just unsolder them later.

I'm on mac, and osx doesn't recognize the ftdi board on it's own. At least not visibly..

Going to solder now.
3  Using Arduino / Microcontrollers / Re: Just got my first Pro Mini's. Now how to program them? on: August 21, 2011, 09:07:34 pm
PLaying with them more, I don't think the connection was as reliable as I thought it was. Going to add pins to the promini, and will report back.
4  Using Arduino / Microcontrollers / Re: Just got my first Pro Mini's. Now how to program them? on: August 21, 2011, 08:56:01 pm
Hey Crossroads. Thanks for the tips. It sounds simple, but I've gotten very close to that, without success. I appreciate the help.

Currently, I've added pins to the FDIC board and run them through the promini to make the connection. I'm pretty sure I'm pressing well enough to make a connection, but I'm not seeing the "New Network Device" dialog that happens when I plug in my Uno, and I'm not seeing either USB as a choice of Serial Port in the arduino software...

Will adding pins to the promini help with this? These boards are really only going to be programmed once and live forever in their new homes, so if I can avoid soldering just to unsolder, it would be nice.

Also, what pins should I connect to what?

On the FDIC, I have

- DTR (What is this?)
- RXI
- TXO
- 5V
- CTS (What is this?)
- GND

On the Pro Mini, I have

- GRN
- TXO
- RXI
- VCC
- GND
- BLK
5  Using Arduino / Microcontrollers / Just got my first Pro Mini's. Now how to program them? on: August 21, 2011, 08:17:04 pm
I have a handful or Pro Mini's (5v, 16mhz, 328) and an FTDI basic breakout 5v.

I bought the breakout board because I thought that it replaced the USB to serial element found in boards like the Uno. (I'm very new to Arduino, and don't quite understand the variety of chips, so I'm probably simplifying)

Basically, I have these chips, an Uno and access to a Duemilanove board. Is it possible for me to program my Pro Mini?


( This is the last step on my way to some awesome burning man toys.. I'm going to be very sad if I can't make this work... =^[ )

Thanks!
6  Using Arduino / Project Guidance / Re: Rotating connection for three wires? on: August 20, 2011, 02:51:19 pm
A poi is just a weight on a string, that you spin around yourself. They're very fun to play with. Try it out with 2 tennis balls in stockings (or similar).

Sometimes people light them up, which makes them as much fun to watch as to play with. Some light up with LEDs, others are made to be set on fire. Using systems of LED's to write things in the air is very new, but is what I'm going to use this for.

People dance with them, exercise with them or, more often if you're like me, hit themselves in the face and groin.

Lots of fun. =^D
7  Using Arduino / Project Guidance / Re: Rotating connection for three wires? on: August 20, 2011, 09:54:10 am
It's for a poi. As small and light as possible. Would need to support maybe 3-4 lbs of force, tops.

Slip ring, got it. Thanks.
8  Using Arduino / Project Guidance / Rotating connection for three wires? on: August 20, 2011, 09:28:20 am
Does anyone make a component that will let a part of my project rotate freely, while maintaining the connection of three wires? This is for a poi that would be suspended from your hand by the same wires that power some leds.

Looks like:



9  Using Arduino / General Electronics / Re: Where to buy 3.5mm 3-channel-and-ground socket? on: August 14, 2011, 01:50:55 pm
Didn't find them on Maplin, but did find them on Mouser and Showmecables by sesarching for "3.5mm 4"

http://www.showmecables.com/viewItem.asp?idProduct=3102
http://www.showmecables.com/viewItem.asp?idProduct=3102

Also, good terms to search for are "4 pole" "4 cond" or "4 conductor"
10  Using Arduino / General Electronics / Where to buy 3.5mm 3-channel-and-ground socket? on: August 14, 2011, 01:08:16 pm
I'm looking for a socket that will accept a plug like the 3.5mm end of this cable, but can't find anything while searching online.

Sparkfun has a 2-channel version, which only has Left, Right and ground. Does anyone know where (or specific terms I should be searching for) to find this type of socket?

Thanks. For the curious, I'm planning on using it to quickly attach and detach signal cables for RGB leds (and common ground).

~J
11  Using Arduino / Sensors / Re: Accelerometer for sensing how fast a poi is spinning? on: July 03, 2011, 10:35:21 am
A poi is a flow toy, a ball on a string that you play with by twirling around you. Most common types are just a weight on the end of a string/rope/chain, but they come in lots of different shapes. Mine is two on either end of a longer wrope, called a "meteor". Oh, yea. Sometimes you light them on fire, which looks really cool when you're good.

If that megnetomoter can do all of what you claim it can, it'd be reallly powerful. =^] Going to warm up to arduino with some simpler projects (remote control LED lamps, and motorized blinds on a timer) before I drop $100 for the pair.
12  Using Arduino / Sensors / Re: Accelerometer for sensing how fast a poi is spinning? on: July 02, 2011, 11:27:35 am
Wow! So many ways to approach the same problem.

IR beacon is tough, because I won't always be in the same place, and may often move while playing.

I'm going to read up on how the magnetic option works. I think it'll wind up being too complicated for what I'm doing, but sounds really cool to know.

What do you guys think about measuring tension in the rope? Instead of measuring gravity at the end of the poi, measuring the poi's pull on the handle in your hand..?
13  Using Arduino / Sensors / Re: Accelerometer for sensing how fast a poi is spinning? on: July 01, 2011, 01:44:06 pm
Exactly the component I'm looking for, for exactly what I'm trying to measure.

Can you recommend one? I'm not sure this one on parallax is what I'm looking for..
14  Using Arduino / Sensors / Accelerometer for sensing how fast a poi is spinning? on: July 01, 2011, 12:41:26 pm
I'm in the drafting stage of making a set of poi that are aware how fast they're being spun with the intention of doing something cool with an array of LED's, currently looking for an accelerometer sensor to put in the end of the poi. My hope is that this would give me a reading of the acceleration the poi are undergoing and I could use that to calculate how fast they're moving and run different sequences in the LEDs to make it look cool.

What would be a good sensor/accelerometer for getting an estimate of how fast the poi are spinning? I've found this accelerometer, but I'm concerned that this and most components like it, would be more appropriate for orientation sensing and not such a good fit for acceleration sensing, like I would need.

Thanks guys!
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