I'm working on a project in which space is at a premium (I'm trying to fit the final design inside a USB-stick type case) and would like to use the same button to control selection with short presses (to cycle through the different modes) and perform a hard reset if held for 3-5 seconds. My 1st thou…

Selection and reset on the same button

system October 22, 2012, 12:32am 4

Your idea of putting a low pass filter on the reset line seems like the best bet. You could connect an input pin upstream of the filter to detect the short button presses.

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Selection and reset on the same button

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