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SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

dennis612b

Member Since: November 18, 2008

Country: United States

  • The trick is to send a command in the first place. You can’t reverse engineer them any other way than trial and error. You have to keep poking until something happens. Anyway, I know many devices need to recieve a sequence prior to emitting the “?” to get them to talk to you in their diagnostic/set-up mode. e.g. an X-Port needs xxx. At a higher level of hacking… the easiest way to make a LRS is to modulate the beam and look for the phase shift. The transmit and recieve pulse trains should be discoverable and intercepted to roll your own distance estimates.

  • Nice thesis. What did you do to get it to send data out?

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