Soft Touch power switch

249

02:31:20

Original power switch from Michael Ruppe (link below) adjusted to be used in an Arduino configuration. When the push button (NO) is pressed, the Arduino (displayed as the V meter) senses current (reduced voltage with a voltage devider). The Arduino is programmed to trigger an action on a short press. On a "press and hold" 
the Arduino switches off the Voltage applied to the lower transistor, thus turning of the circuit. https://www.youtube.com/watch?v=0IjJH3ksqfs&lc=z23af3cy5mnqtv1vwacdp435otf4d1ekb1goh4jd5alw03c010c.1514537351567456

published 8 years ago

LeButch

8 years ago

The button I have here is really hard to push. Can your circuit make it more soft?

rich11292000

8 years ago

Nmos upside down, it's body diode will bypass the control.

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