SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!


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  • Deep fryer basket

  • ‘merica.

    Yeah. ‘merica.

  • Invisible Jet-pack: The real reason there haven’t been any Friday New Product Post videos…

  • I think a big part of security with these types of devices will be setting things up so they are only available through VPNs or other traffic encapsulating techniques. Once IoT devices move to IoT (Intranet of Things) where there is a single, highly-secured point of access with the outside world then security will become a lot easier to maintain. Both because it’s far easier to secure a single point of entry, and because the burden is (largely) removed from the ‘Things’ and instead rests on what can be a much more powerful piece of equipment.

    Trouble is most solutions still involve fairly weak wireless communications inside the home. It seems that we’ll need a good solution that handles pairing, key generation, and traffic encryption before wireless ‘Things’ can ever really be considered secure. Personally: I’m a fan of hard-wiring everything when possible. Security concerns aside, it’s nice to have no concerns about battery life or reliability in communications. Plus it’s a lot cheaper to prototype. :-)

  • You’ll need something to talk USB on both sides, so yes, your remote device would need to be a USB host and have the proper drivers for talking with this chip.

    Is this temperature box pre-purchased or something you built? There are other options for doing USB over vast distances (active extenders, Ethernet (as in IP) adapters, etc), but they each have their pros and cons.

  • Every year on 3/14.

    This year was just extra special. :-)

  • That moment when the anti-gravity breakout demo goes a little too far…

  • Survey says: Yes. Datasheet says 60 volts max drain, and 30 (!!!) amps continuous. (Power dissipation is 96 watts to +25 degrees centigrade.)

    TBH: I’d have more concern over those screw terminals and the traces than the MOSFET itself. (Terminals are rated for 6 amps as 125 VAC.)

  • See @tbitson’s post about T-Mobile’s free 200 MB/month plan. Essentially a totally free solution for low-transfer devices, no length limitation.

  • Jim takes the term “Electronic Wizardry” a little further than most people.