user87602: I was wondering if it is possible to power up a 12V solenoid valve from the DC jack of the Arduino Uno, provided that I'm powering the Arduino from the same jack:


user70044: Sure, that's the same as if you were directly soldering a second plug to your power supply. Just make sure the power supply delivers enough current for your solenoid (the power used by the Arduino will be comparably negligible).

87602: <p>I was wondering if it is possible to power up a 12V solenoid valve from the DC jack of the Arduino Uno, provided that I'm powering the Arduino from the same jack:
<a href="https://i.stack.imgur.com/kdxfp.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kdxfp.jpg" alt="enter image description here" /></a></p>
 70044: <p>Sure, that's the same as if you were directly soldering a second plug to your power supply. Just make sure the power supply delivers enough current for your solenoid (the power used by the Arduino will be comparably negligible).</p>
