tonyvr

Member Since: January 13, 2011

Country: United States

    1. Use an old metal lunchbox.
    2. 3-D print one!
  • The leg room was a little tight in Sparkfun’s first corporate jet.

  • I just bought one of these, and I must admit I was disappointed for two reasons:

    The part you press is smaller than all but my pinky finger, so pushing it in far enough to latch is difficult.
    
    The circuit is completed BEFORE it passes the latching point, so if it fails to latch (most of the time, for me), then it acts like a momentary switch.
    

    I was going to use this to turn on power to a device, but it is completely unacceptable for this purpose, sending brief pulses of power to my device when it fails to latch.

  • I just bought one of these, and I must admit I was disappointed for two reasons:

    1. The part you press is smaller than all but my pinky finger, so pushing it in far enough to latch is difficult.

    2. The circuit is completed BEFORE it passes the latching point, so if it fails to latch (most of the time, for me), then it acts like a momentary switch.

    I was going to use this to turn on power to a device, but it is completely unacceptable for this purpose, sending brief pulses of power to my device when it fails to latch.

  • It comes with VNC installed, I believe, so if you can determine its IP address from your router, you can log in via VNC without any cables whatsoever.

  • It was originally advertised as 1000Mbps, then they lowered it to only 10 Mbps, and now the page says 100Mbps. I’m not sure which is really correct anymore. Check out:

    http://pcduino.com/forum/index.php?PHPSESSID=3805887a1d3740fbc669aa542c8c0530&topic=4367.0

    Also, don’t try plugging any 5v. Arduino Shields into the thing – it’s 3.3v only.

    That said, I own the pcduino3, and it is a very nice board with quite a few project examples on their website – and it is much more powerful than a RaspberryPi or even the Beaglebone Black..

  • I use Firefox because I don’t trust Google, and because IE doesn’t work well with AdTrap.

  • While Geppetto slept, the Sparkfun elves updated the RedBoards controlling the puppet factory.

  • OH! One more hardware-related python tip – you can use python to play interactively with any hardware that has a serial port interface by downloading the pySerial add-on. It doesn’t come with the official python distribution.

    tonyv

  • Thanks for article. I agree that python is just a WONDERFUL gift to humanity. It is completely free and open source, and can even be incorporated into commercial products.

    Since this is a hardware-oriented site, I thought I would also make a plug for SWIG, which is a free tool that can generate a python-compatible wrapper for existing C or C++ DLLs. C is the defacto standard for hardware control since it is lean and mean and close to the machine, so most OEM hardware components out there have a C or C++ interface DLL (or at least source code) for programmatic control. If you have the *.h file for this code, then you can use SWIG to automatically generate a python interface (or perl, or java, or c#, or many other languages), and then play with the hardware interactively!.

    Finally, if you DO need a GUI, rather than a command-line interface, try wxPython rather than using the ancient TK libraries that come with the python distribution – you will be very glad you did.

    tonyv

No public wish lists :(