SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.


Member Since: March 18, 2011

Country: United States

  • quoted text “Good question. If I blink one LED, up to 4 receivers may ‘see’ that LED blinking. Each IR LED blinks in a beam and that beam expands to probably 24-30” at 8 feet. So if the IR receivers are 6" apart, they will ‘see’ cross talk from the wrong LEDs. That’s why we needed to turn on/off the LEDs at certain times and ignore certain receivers when the IRs were blinking.“
    I would have relied on that fact. Just blanket the whole thing in IR and put the receivers at the end of narrow tubes to block out any wide angle light. (narrowing the visibility of the receiver) That way you don’t have to worry about turning on/off the IR LED’s at all.

  • If at all possible… Biweekly instead of Monthly!
    (Every two weeks please!)
    It’s all a good review and I’m curious to see how the project turns out.

  • Any chance you would just sell any of the little plastic cases they come in? They make excellent protecting enclosures for your AVR pocket programmer after a little work with a hobby blade.

  • Just so you know… The little paper that ships inside the bag says LCD instead of LED on the back. And it also talks about an “ithium” cell in the lower left-hand corner. Perhaps you might want to fix that when you print a new batch out. :-)

  • Oops… I guess I should have looked more closely at the picture before ordering one. I was hoping to use this to make a breadboard programming cradle for the ATmega328, but turns out that the 28-pin socket is WAY too wide for that. :-) (The 20-pin sockets work perfectly for the ATtiny2313)
    Oh well… they are made of plastic, I can cut the middle bars out and make it as wide as I need it.

  • Can this be used in place of LM741 and LM311 op-amps?