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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

Member #571088

Member Since: July 8, 2014

Country: United States

  • in order to get a contact closure, would i use the envelope output to actuate a small relay?

  • can i desolder the mic and solder on wires that i connect to a computer headphone output? i need a circuit to close when audio signal is present.

    thanks in advance.

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