Member Since: April 30, 2011

Country: United States


Programming Languages

Java, C, C++, Perl, Python, Groovy, Cobol, Basic

  • I also think the sensor is in the wrong place. It should be on the glove where it contacts the bag. You’ll still get noisy data and have to filter it, but it should be a much easier job.

  • It would be nice to add an article that goes into the image processing that is done in cameras today. The software corrects for imperfections in the placement of the lens or tilt in the imaging chip. It’s kind of remarkable how much the software improves the raw image data.

  • I purchased this scope from Sparkfun, but I’ve lost the software disk. Is there a place I can download the EasyScope software for this scope?

  • Do you have any specification on how much current this jack can carry?

  • I worked for a major telecommunications company back when the internet was just starting. I overheard a discussion between some of the big muckety-mucks about a presentation we’d all just watched, where the presenter talked about the new technology of voice over IP. One of the execs first comment was “We have to get it outlawed, it will cut into our profits.” Quite a few of the execs felt the same way. They would have outlawed the whole internet, if it had been up to them, in order to protect high long distance rates.

    Regulations aren’t necessarily evil. Without regulations, thousands of more lives would be lost in auto accidents every year. We wouldn’t be able to trust our food supply or implanted medical devices, if there were no regulations that helped insure proper testing is done and proper safety equipment is in place. On the other hand, there are out-dated regulations and ones that simply don’t work. All too often, regulations are written by some interested party. For instance, GTE wrote most of one major telecommunications bill.

    The Internet is one of the great inventions. We need to keep it as open and accessible as possible. For once, we should work for the common good, rather than simply helping rich telecomms become even richer, without regard for the potential problems that will cause.

  • Same here. Planning on making earrings for my wife. :)

  • I agree, the best places I’ve worked were ones where there was lots of diversity. It’s just more interesting.

  • It’s easy for something that seems like a good idea to backfire. For instance, I know of a company where the whole programming team gets a say in hiring decisions. While that probably helps team morale, it means that anyone on the team might be able to veto women or minorities. I worked at another company where the whole management team smoked and made all their big decisions as they stood around outside on their smoke breaks, inadvertently shutting out the ideas of anyone who didn’t smoke. Sparkfun’s own policy of allowing dogs at work, while great for dog lovers, probably discourages people who aren’t particularly fond of canines.

    We need to occasionally challenge our assumptions and try to see things from the viewpoint of others. That’s pretty important if we really want a society that is fair and equitable in it’s treatment of everyone. Fortunately, it’s something everyone can help make happen. All we have to do is pay attention and speak up.

  • This looks like a Teensy 3.1 microcontroller with a 74HCT245 used as a DC-DC converter. This is very similar to where I got to when trying to use a Teensy to run 130 LEDs, except this probably works better than my hack. The AAT3110 is a ChargePump that can give you 100mA of regulated 5V from a 2.7 to 5V input. It’s used to supply the 74HCT245 which give you a nice clean translation from the 3.3V output of the microcontroller to the 5.0V that the LEDs want to see. This should make it a lot easier to use the WS2812 LEDs, which can be very finicky, especially when you’re running a lot of them at the same time. I’ll have to try it out.

  • Has anyone tried to interface this with the 32x16 LED Panel, https://www.sparkfun.com/products/12583 ? There is code written to interface it with the Arduino, but much of the library code is low-level and incompatible with the Teensy. I’d like to use the Teensy, because it provides enough power and memory that I need for doing animations and possibly other functions while running the display.