Member Since: August 6, 2007

Country: United States


Spoken Languages

English, French, Spanish, Binary

Programming Languages

BASIC (hey, it’s useful, mmkay?), PIC assembly, C/C++, etc


Old Dominion University / Drexel University


PIC microcontrollers, Z80-based system architecture, PC system design


Electronics (duh), Flight Simulation, Chess




A New Old Approach to Teaching Microprocessors (coauthor W. Rosen) etc

  • News - April Caption Contest | about 2 weeks ago

    SparkFun always tries to find the best “cheep” parts for our customers. Here is our secret weapon.

  • Product DD-12012 | about 9 months ago

    So does that mean this will be a thing? Because this should totally be a thing!

  • Product PRT-10161 | about a year ago

    It still says 100mAh per hour in the description. Perhaps an accelerating rate of charge? ;-)

  • Product PRT-10897 | about a year ago

    Here ya go!

     -------------------------               (x 100)
  • Tutorial - PowerCell Quickstart Guide | about a year ago

    You should be able to use the 5V output from the Arduino as an input to the 5V charge pins on this board. I haven’t checked the current requirements or capacity on the Arduino, though.

  • Product PRT-00643 | about 2 years ago

    It’s nice to have these available without the isolating transformer. That way, you can use them to pass (low-current) DC power, TTL signaling, etc.

  • News - SparkFun Viking Funeral | about 3 years ago

    How about you burn an effigy and make the obsolete boards available first-come-first-served at a discount? Obsolete parts are still useful, as any Maker knows!

  • Tutorial - Lessons from Rebuilding Illumitune | about 3 years ago

    Nice job – thanks for the writeup!
    For the 38kHz, I’d have been tempted to make a single 38kHz generator (maybe a PIC12F683 controlled by a 50ppm TTL oscillator), and use an AND gate on each LED. That way, you could send logic levels to the AND gates and get either zero or 38kHz out for each one, without worrying about keeping the code length deterministic for each LED. (I’ve done more than enough counting of clock cycles in PIC assembly; there are a lot more fun aspects to spend time on.)

  • Product WRL-10559 | about 3 years ago

    Check your baud rate and settings on your PC. I think it defaults to 115200, N, 8, 1.

  • Product WRL-10559 | about 3 years ago

    WOW – that was easy. Connect 3.3VDC and ground (I put a couple of decoupling caps on the breadboard anyway), connect a ‘scope to the TX output, pair your Bluetooth device with the module (PIN is 1234), and watch the data come in. Very nice!

Name Pieces Total
Surface mount
7 47.75
Winter 2013-14
Any or all of these things would be useful and/or intere…
138 2028.8
10 580.15
Parts needed (other than chassis) to build a maze-follow…
9 108.65