Vin pin

Using Arduino General Electronics
1

Hi all,

First time I am working with an Arduino so maybe it is a bit simple question.
I tried the search function but did not yet found an clear answer I could totally understand.
Therefore, I ask it again to hopefully understand fully.

I am using a Arduino Uno rev3.
Next to this I have a sensor requiring 12V and has an analog output of 5V.

I understand the connection to the GND and the 5V to the A0 (or A1-5).

Q1) If I power my Arduino via the power plug with 12V, can I use the Vin to power the sensor? (yes/no)

Q2) if not please help me a bit with how to do this and let me understand the Vin pin and how high voltages the arduino can handle via the

Regards,
Stefan

2

12V to barrel jack, fine. 12V to sensor or Vin to sensor, either will work.
Common the grounds.
Check the power supply can produce enough current for all the loads it powers.

3

Stefan_Hol_WUR:
Next to this I have a sensor requiring 12V and has an analog output of 5V.

I understand the connection to the GND and the 5V to the A0 (or A1-5).

Analog 5V output? Doesn't make sense. That should be a voltage range, and should not be more than 5V. Do check the data sheet of your sensor to understand the actual signal you can expect.