SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.


Member Since: July 23, 2009

Country: United States



I’m a 21 year old college student persuing a degree in Electronics Engineering Technology. I became interested in microcontrollers with Arduino, but wanted to actually learn microcontrollers. That’s why I’m here.


Student, Intern



Spoken Languages


Programming Languages

C, C++


Wentworth Institute of Technology



  • By the way, the DC barrel jack for the voltage input has a 2.5mm pin and 5.5mm overall diameter. I work for a brick and mortar Sparkfun distributor and every once in a while I modify a 12V 5A power supply to have the proper jack.

  • Don’t expect much with a wire-whip antenna. The datasheet references application note “IA ISM-AN1” which seems to be relabeled by different manufacturers. There is comparison of different antenna types in table form for each of the bands. Google it. Unless someone else has already done some experimenting, there’s no short answer, I’m afraid. (as far as I know)

  • Now that you reminded me about this comment from 3 months ago, I realized that I could have answered the question since I own a set I got from Electronix Express. With some confidence I can say that the answer is 300V.

  • Follow CRC’s advice: definitely do not use this for wire-wrap nor the kind of fine PCB repair work that one might also use 30 AWG wire for.

  • The spools of wire themselves all come from the same place, and Electronix Express is located in New Jersey, USA. If you’re going to be defensive on SFE’s behalf, then at least dignify them with a more useful argument. Granted, they are still sort of slow sending orders out, but I give them an excuse because… New Jersey. On the note of your argument, I agree about the whole China thing. I ordered some stuff from Deal Extreme (didn’t even know they had such an extensive, and unorganized, DIY parts store) and they screwed up a few items on an order that cost $250 (the whole order) and now they’re going to make it very difficult for those errors to be fixed.

  • Do some CSI-style “enhancement” on the photos of the jacketing and you’ll have your answer!

  • Their servers were not kind to me on both Free Days, but I don’t hold a grudge because of it. I wasn’t entirely persistent, either.

    I will say that this is a handy thing to have around. I bought both stranded and solid sets from ELEXP because each kind of wire is appropriate in different situations. 20-24 AWG is a good range, with 22 AWG being ideal for general use.

  • See part number 27WK22SLD25 at Electronix Express… $11.95

  • See part number 27WK22STR25 at Electronix Express… $11.95 I do kind of hate ordering from ELEXP, though. Slow to ship, no tracking information, etc…

  • I was going to make the following point when I first saw this product appear, but I was too lazy to login (yeah…). The point is made more legitimate by the comments about the design error that I failed to notice myself.

    The Freeduino USB has been around at least a couple of years and has the FTDI chip included in the design. It costs only $23 from NKC Electronics and some other places.

    There is also the “Diavolino” from Evil Mad Scientists Labs, which has less functionality than this Sparkfun product (doesn’t come with the regulator, but will accept one). It only costs $13.

    I love Sparkfun, but I tend to avoid buying things from you unless they are unique and useful because your prices are not always entirely reasonable. Either way, you people have done some great things (by merely existing) for the hobbytronics community. Just… stop proving my gripes correct, please!


No public wish lists :(