Member #735

Member Since: January 25, 2006

Country: United States

    • card detect
    • data out
    • serial clock
    • power (literally: voltage, collector collector)
    • data in
    • card select
      These pin names are in generic or SPI terminology rather than SD card terminology.
  • It would be worth checking the solder joints. I can attest to the parts quality on this board being sub-par, and one could speculate that the build quality might not be the greatest either.

  • The LPC has a serial bootloader loaded from the factory in ROM, and if I remember correctly I believe NXP has a USB bootloader available on their site.

  • The air flow is pretty high but the nozzle is pretty big so it isn't strong enough to blow molten parts away. It will float a leadless ic off center as the flux flows, but only if you're not perpendicular to the board. You may or may not have some head room for a constricted nozzle. It certainly would be interesting to see SF offer some smaller nozzles for this.

  • Just you go ahead and try it and you'll find something else that you've tried and found to work. I believe you've just inadvertently created your frying pan of hot air reworking tools for anyone on a budget. It's a bit slower and considerably more bulky, but those are some mighty insignificant complaints considering the $200 price difference between this and your other hot air options.
    I haven't found anything I can't rework with this yet, and I expect I won't. At the same time, it doesn't seem capable of burning a board as far as I can tell. Given the $10 price tag, I think I'd say it's perfect for a beginner, as well as anyone else too. The only thing I wouldn't want to do with it is a lot of work at once.
    For a beginner trying this out, just turn it on and blast it at your part at point blank range. Not more than a minute later you'll have molten solder. Any further instruction just wouldn't be necessary with this guy.
    TLDR: It's a fool proof $10 hot air rework tool. Buy it.

  • Previous comments would seem to indicate so. Scroll up a bit.

  • How long have you guys had these things? I'd suggest moving them to a broader prototyping category for sure. They're damn convenient for a lot more things than just arduino. I don't think you meant to hide them from the rest of us.

  • A board needs to have more than just a few components on it before a stencil is actually worth it for the average person. If a board you just need one of has only a dozen or two pads on it which take an extremely generous 60 seconds to squeeze out, then one would have to value their time at $1600 per hour to justify the cost of a $25 stencil. I'd like it if that were the case and I do value my time greatly, but I haven't figured out how to make my time worth that much money and I don't think I'm going to before the economy collapses.
    At the end of the fiscal year it all boils down to whether or not sparkfun can profit from selling syringes, and perhaps even make some happy customers along the way. Again I'll hazard a guess. I think they can. Time will tell, of course. If the sale of this paste goes well enough, I think we can reasonably expect to see syringes show up. In the mean time, inkjet refill syringes work acceptably well with paste, and seem to store it ok too.

  • Your pcb pads clearly had solder on them already. You can't solder without solder.

  • Standard shipping on these, right? You guys should stock syringes too. Stencils just aren't worth the cost for small boards.

No public wish lists :(