matt pinner

Member Since: December 26, 2009

Country: United States



i love designing interactive systems and electronics. Specializing in wearable technology and connected devices has allowed me to teach people Science, Technology, Engineering, Art, and Math in non-traditional places light street corners, nightclubs, and in line at the market. i love opening minds to the possibilities they can create with even a minimal grasp of technology.




lightning temple crash space gogii textplus

Spoken Languages


Programming Languages



hard knox







  • would this be a practical solution to increase the length of spi lines. i only need output. my theorey wa to place one of these on either side like so:

    arduino -> spi -> rs485 -> [long cable run 100ft] -> rs485 -> spi -> ws2801

    or something similar. is there a better solution?



  • can this fio identify as a different usb device? id like one to show up as a midi device.

  • this one makes me happy.

    some phone and camera batteries have three contacts. can i still use this if im really careful?

    what would you suggest?


  • Are we having fun yet? YES!

    It is pretty boss having the SparkFun warehouse downstairs.

    Things are coming along nicely:

    • I’ve gathered a lot of data about various audio reactive solutions.
    • The pattern for the jacket is well underway.
    • I’ve mastered the Shake-On-Wake as a way to turn on my jacket without having any annoying power switches.
  • great ideas! i’m unleashing this blindingly bright delightful Goggly Eyed surprise : http://youtu.be/Mp5uZh5hDvg

  • Anyone else have trouble with these holding a charge?

  • I got this working like a champ! It is super sensitive. I’ve taken to learning about the microphone circuit and adding a switch with additional resistors so I can turn down the sensitivity for nightclub settings
    It turned out i had a few suspect solder joints. I noticed while attempting to test the microphone as Fearless Night suggested. The real trick was getting a high powered light and magnifying glass and really be sure everything was soldered nicely. The opamp on the mic was definitely not down properly. The easy thing there was to flux it grossly then let a little heat reflow it into place.
    This is a great kit and for my second attempt at SMD it is about as fool proof as it gets.
    thanks again for the continued support, Fearless Night!

  • please note that this item is slight different than that listed on the tutorials and product page links

  • Ok, I’ve not really had much change in things performance… yet.
    The support I’ve received from Rich over at Fearless Night has been amazing. He has suggested several possible issues and explained with great depth how I might diagnose the problem.
    I’ve learned a lot more about this kit than I would have otherwise and felt confident enough to order a second knowing I’ll get em both working in short order.
    Great work, sparkfun! Working with these has been a real joy.
    thanks, matt

  • My Colorganic Spectralizer requires crazy loud volumes to excite the LEDs. Way louder than your “new product thursday video” would suggest.
    I did as the troubleshooting guide suggested: To permanently increase the microphone sensitivity, replace R9 with a higher value resistor.“
    I had no resistor in slot R9 so i cut the trace and added a potentiometer instead. This only seems to turn the sensitivity down further thereby exacerbating the problems.
    Any help would be great. I need this to work before I can write it up, teach it, hack it and gift it.