user7572: If i connect a switch to the reset pin, can I create an effective way of turning off the Arduino (overnight) without removing its power supply?  

user10794: Tests show that connecting Reset to Ground on a Uno reduces the power consumption from 47 mA to 41 mA. So it is hardly "off".
All that would do is stop the currently-loaded sketch running, and save a few milliamps.

7572: <p>If i connect a switch to the reset pin, can I create an effective way of turning off the Arduino (overnight) without removing its power supply?  </p>
 10794: <p>Tests show that connecting Reset to Ground on a Uno reduces the power consumption from 47 mA to 41 mA. So it is hardly "off".</p>

<p>All that would do is stop the currently-loaded sketch running, and save a few milliamps.</p>
