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Member Since: February 8, 2008

Country: United States

  • Awwwww... I was REALLY hoping this might be a little better than a 328p stuffed inside... No ATMEGA32U4? C'moooon! Leonardo is an Arduino too! No need for classics like the 328p when the 32U4's around... ... Right? Riiight?

  • github!! Free repositories for open source projects.

  • backers gonna back.

  • Yay, I pushed it over the line, met the goal, and get a DuinoBot.Kids!
    You can still pledge and help out too!

  • My guess is 8VDC minimum for 5V output, 6VDC minimum for 3.3V output.

  • Unlikely, all the claims held under the patent would have to be met to infringe ; there's at least two that this does not.
    One of the biggest claims that is not met is the last one, claim number 32:
    32. The power adapter of claim 28, further comprising means for establishing at least three separate paths of electrical communication between the internal electronics and the transformer regardless of which of the two orientations the connectors are coupled together.
    Also, the connector itself has a chip inside to control the color of the LED, which is off when the supply is idle at ~6V, green when the output's 16V-19V, and red when the laptop is charging. The lead cable, however, is only two conductor; a central positive lead and a braided ground, so all this happens inside the connector.
    The wall-side of the supply has a microcontroller and a DC ammeter to monitor the current flow. When it's >1A, the output voltage is approx 6V. Between 1A and 2A it's ~16V, and 19V under heavy load.

  • Can we get a respin of this board with the new COM-10613 digital Potentiometer on the trim pin?

  • Argh! I wanted to build this to have a spare soldering iron at home! WHY MUST THIS BE FAKE?!

  • I've been looking for a new or used oscilloscope for ~$200-$500 for a while.
    But I've never owned or used one before; so I'm having trouble making a selection.
    On the cheap side; there's Seeedstudio's new 72Mhz DSO-Quad which I've been seriously considering.
    On the used side; there's plenty of HP & tektronix 40Mhz and 100Mhz scopes on craigslist and ebay.
    On the new side, there's a RIGOL DS1052E 50Mhz scope that can be reflashed to the 100Mhz version's firmware.
    You guys probably have a stack you've tried, could you break a few down for us newbies, and how much oomph we need for troubleshooting simple projects?
    Maybe a quickie tutorial on poking an arduino and an mBed with a scope?
    You've had the multimeter tutorial for a while; which was great, but a video segment for Introduction to Oscilloscopes would be awesome.

  • Hey, thanks, that helped me a lot!
    Just picked up five bare chips, some 16Mhz and 20Mhz crystals and a baggie of 22pF capacitors with my Free Day 2011 lump!
    Would have gone for the cheaper resonator option if it hadn't been for your helpful post!