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Matt21

Member Since: April 27, 2009

Country: United States

  • I have a larger set that comes with the same ratchet but more bits. I don't use it too much, but when I do it's a lifesaver. This thing will fit in very small spaces and save you from scraped knuckles and colorful mutterings. At this price, buy two.

  • Is there a light in the screwdriver? Why is there a battery?

  • Description says 6 SERCOMs, Features says 8, and the video says 8. Which is correct?

  • What color are the LEDs?

  • So what's the real difference between the two 101 boards? I'm guessing it has something to do with Bluetooth firmware and/or FCC compliance.

  • 18km. http://hardware.slashdot.org/story/13/10/01/1337243/bypassing-us-gps-limits-for-active-guided-rockets

  • The button cell is to maintain the almanac and clock while "off". This gives it a starting point to look for satellites the next time it starts up. Basically faster acquisition. The battery should last several years. When it dies (or if you remove it) the receiver will still work fine, you'll just have slower acquisition. Also note that if you use this very infrequently (like more than a month between uses) you may as well not have the coin cell because the clock and almanac will be far enough off to be nearly useless.

  • The altitude limit for any COTS GPS unit is 50,000 ft. Note this is not a technical limitation but an artificial one. You'll need to change the firmware to overcome that limitation. Given that your average development kit from a GNSS receiver manufacturer (uBlox, Trimble, etc.) is out of reach of most hobbyists ($$$$), perhaps rolling your own GPS with a software defined radio may be a better option, especially if you only need a fix every hour or so.

  • Got any of those matching bus bars? Maybe ones that are scored so you can break off the length you want? I promise I won't use them with 600V applications.