SparkFun Electronics will be closed in observance of memorial day on Monday, May 29th. We will resume normal business hours on Tuesday, May 30th. Any orders placed after 2pm Mountain Time on Friday, May 26th will process and ship out on Tuesday, May 30th.

Larry Paj

Member Since: January 22, 2010

Country: United States



EE turned to the dark side and now working as an IT Enterprise Achitect.

Programming Languages

Assembler (8080, Z80, 6800, PDP-9), C, C++

  • From my reading of US patent 5949531 the laser is modulated with a 2ns pulse which changes the arrangement of the sparkles which is in turn compared with the reference transmitted beam to get the time delay and thus the distance.



  • Most touch sensitive faders use metal knobs for the touch capabilities.

  • Compared to one of my first jobs programming 8080 assembler and burning the code into 256 byte EPROMS the Arduino is dream. I will gladly pay a penalty in execution speed to see results so quickly. Besides who wants to use paper tape these days?

No public wish lists :(