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Otzen42

Member Since: October 23, 2011

Country: United States

Profile

Bio

FPGA Designer in the Aerospace Industry with a Masters Degree in Electrical Engineering and a Bachelors in Engineering Physics from Colorado School of Mines.

Programming Languages

Verilog, VHDL, Arduino, C/Embedded C, Bash, Processing, Assembly, Matlab, Mathematica

Universities

Colorado School of Mines

Interests

Arduino, FPGAs, AVR, Autonomous Vehicles, Image Processing/Control, Tesla Coils

  • As long as the smaller bots don’t disappear entirely. I think they provide a nice option for first-time teams. The barrier of entry (particularly cost) can be a lot lower with a simple RC chassis, Red Bot chassis, or even just a board with 4 hobby motors screwed to it.

    Don’t get me wrong, I think the A+PRS is an awesome option for teams that have the time/money/experience to take it on.

    I look forward to this years AVC!

    PS>> Sounds like aerial is quietly going by the wayside?

  • Anyone know where to find an Eagle symbol for this? I know they have 0.1" headers, but I am specifically looking for the shrouded footprint silkscreen.

    Thanks!

  • Be sure to use the correct CS pin. The Arduino library should support selecting the custom pin when you initialize the SD card.

    http://arduino.cc/en/Reference/SDbegin

    SD.begin(8);
    
  • Update:

    Just saw on Aurduino’s site that the library supports a custom CS pin as an argument to SD.begin.

    http://arduino.cc/en/Reference/SDbegin

    Haven’t tested it yet, but looks like all you need is:

    SD.begin(8);
    
  • Have to say, while this board looks great, not impressed. I have had 2, the first showed up dead, and the second died after minimal use in a Wild Thumper (well below the rated limits).

    So far Sparkfun has been great about returns, but I am moving on to something else (http://www.pololu.com/product/1112/).

  • Just got a Mojo V3, and took a while to browse their site. My recommendation is if you want to start teaching about FPGAs, work with them, they have done an incredible job with the Mojo. I think they covered almost every hurdle I could think of, and a couple I had overlooked.

  • I noticed that the new T-Rex controller has inputs for rotary encoders. Is there any good way to work an encoder into this chassis?

  • Two thoughts. First, it would be really nice if you had the appropriate length M2 screws available, it took me 3 hardware stores to find them, and the only ones I found are ½ inch long. Second, it would be even nicer if the holes in the bracket were large enough to pass an M2 screw through…..

  • Hate to knock your board, but for a bit more, this one has some nice features.

    http://www.adafruit.com/products/395

  • A couple tips to save you some headache:

    1) For the latest Arduino (1.0.5) update the example sketch to include SD.h rather than SdFat.h and SFatUtil.h.

    2) The SS pin for an Uno is defined on line 278 of Sd2PinMap.h in $(ARDUINO)/libraries/SD/utility/ where $(ARDUINO) is your Arduino installation directory. Be sure to set it to 8.

    With those updates the example sketch works great.