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Member #307167

Member Since: March 5, 2012

Country: United States

  • that's it. Thanks.

  • No, I meant the rocker/pushbutton switch used for display selections.

  • Where can I get that small rocker switch you use in the video?

  • The 74HC4067 is an analog multiplexer. Referring to the data sheet shows that there are NO internal pull-up or pull-down resistors. Without pull-up resistors to 3.3V, the inputs and output float. This would cause the false-triggers or no triggers reported by some users. As 'zip' pointed out earlier, connecting a 1K pull-up to the output of the multiplexer fixes this condition. But that is only part of the story. The 1K pull-up is only connected to an input when that input is selected. This fixes the "bad-trigger" problem but still allows the unselected inputs to float into their linear region. This causes high current consumption. Some users report the regulator getting hot.

No public wish lists :(