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1  Using Arduino / General Electronics / Re: Okay to mount Arduino to Styrene? on: September 02, 2014, 05:06:59 pm
LarryD emphasized it, but I'll do the same as well having been bitten by it.

There is aluminum-looking tape for ducts that is actually nonconductive mylar, so be careful when applying tape to make sure that it really is conductive. (Stick an ohmmeter on it to make sure.)
2  Community / Bar Sport / Re: Solder/Sodder on: August 12, 2014, 06:39:42 pm
"should", "could", "would"
"Suffolk" :-)

Should be obvious that I'm one who says "sodder"...
3  Using Arduino / General Electronics / Re: Basic electronics on: June 26, 2014, 05:39:34 pm
I really enjoyed Platt's "Encyclopedia of Electronic Components" for basic information about what parts do what. - so far he's got Volume 1 out, but is delayed on Volume 2.

Another of Charles Platt's books, "Make: Electronics"  ( wasn't a bad intro to basic theory and practice.
4  Using Arduino / Programming Questions / Re: Need help with Attiny85 on: June 03, 2014, 05:47:50 pm
This is not exactly what you want, but might help:
5  Using Arduino / General Electronics / Re: What gauge wire to use on: May 12, 2014, 05:07:42 pm
Here's a 24 ga wire that might work:

Another alternative is to find shielded wire that's stranded core, and remove individual strands until what's left is small enough for you.
6  Using Arduino / Programming Questions / Re: XOR and XNOR operations with 2 or 3 inputs on: May 01, 2014, 02:45:29 pm
it depends on your definition of a 3-input XOR / XNOR:

Here's an interesting little utility I found recently that might help:
7  Community / Bar Sport / Re: Time to get designing. on: April 01, 2014, 06:24:11 pm
Quebec has their own rules for contests, which aren't quite compatible with the rest of the world:
8  Community / Bar Sport / Re: Calls "from windows" about "online hackers inside your computer". on: March 06, 2014, 06:42:29 pm
Seagate was the only company that offered a 5 year warranty. They stopped that practice during the flood, just like everyone else though. Now  all the companies only offer a 1 year warranty.

The last time I bought a WD Red, it had a 3-year warranty. No idea if that has any meaning these days (especially if you put it in a machine you build rather than a consumer NAS... I suspect their response would be "sorry, you didn't use it according to our spec".)
9  Community / Bar Sport / Re: Problen with ds102 oscilloscope on: February 05, 2014, 05:48:36 pm
I'd bet the USB cable for the oscilloscope has a Prolific PL2303 clone chipset. Prolific got tired of it and their new drivers detect the clone and disable it.

Here's some useful info:

If the USB cable isn't a regular serial device on XP, then this probably won't work - you'll need to find a Win7 64bit driver for your oscilloscope.
10  Using Arduino / General Electronics / Re: Help with CANbus Data logging on: January 14, 2014, 05:46:57 pm
Not sure why you can't use Arduino? You might want to look at:
11  Using Arduino / General Electronics / Re: What kind of connector is here? on: January 10, 2014, 05:42:44 pm
It's still hard to tell from your photo what the connector is. If it's a Wifi card, maybe it's mini PCI or mini PCI-E?
12  Using Arduino / Microcontrollers / Re: Attiny85 programming failing - Invalid device signature on: December 20, 2013, 02:03:20 pm

The usual culprits...

* Wiring
* Auto-reset not disabled
* Wrong board selected
* Buggy ArduinoISP sketch

Enabling verbose output usually reveals which.

For the benefit of future searchers, I'll also add that I've had an Attiny85 report "Device signature = 0x000000" after I walked across a polyester carpet with the device in my hand (sigh). Apparently, zapping the device with static electricity can sometimes cause it to report a bad signature. Switching to a new Attiny85 resolved my problem.
13  Using Arduino / General Electronics / Re: 5V to 12V level convertion ? on: November 15, 2013, 02:44:06 pm
There's no way to use a pin to drive the pump. Even in an ideal world, 200 mA at 12V = 480 mA at 5V, and there's no way a single pin could do that.

You could use a pin to switch a FET / relay, though. Then you could use a boost converter to raise the supply voltage from 5V to 12V - they're available commercially or you could make one:

It might be easier to start with a 12V supply and regulate it down to 5V for the Arduino instead.
14  Community / Website and Forum / Re: reboot: feedback and comments on: October 02, 2013, 06:43:19 pm
On Firefox 17.0.9 / Win XP, I see nothing except a blue banner unless I type a character in the search box at the upper right.

(This is true of both and

- actually, I'll second Jantje : the header under Firefox is just huge. I can scroll down to see the text, but entering a space in the search box shrinks the header.
15  Using Arduino / Programming Questions / Re: How to return a char from a function on: September 19, 2013, 02:06:58 pm
char lat[15] is a string (roughly equivalent to char* lat) - it's a pointer to a place in memory. char is a single value between 0-255. You can't assume there will be an automatic conversion.
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