Member #365733

Member Since: September 30, 2012

Country: United States

  • Note that one can also use a pair of high brightness LEDs. Use one as the Tx and the other as Rx. Connect the Rx to a CMOS invertor biassed as an amplifier and Bob's your uncle. The advantage is that it is visible - the disadvantage is also that it is visible - depends on what you are doing with it!

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