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Topic: Power 2 12v devices on Arduino UNO (Read 357 times) previous topic - next topic

metalmouth

Hi,

I have an Arduino UNO and 2 devices that needs to be attached in it both are 12v. The first device is already connected on VIN & GND but I need to connect another one can I just solder them together like connecting the VIN of the the 2 devices plug it on my arduino? Sorry I'm really new to this hardware stuffs :)

CrossRoads

Yes.

Do you mean VIN on the power header, or are you calling the barrel jack connector VIN?
The power header is after the reverse polarity protection diode, that diode has a 1 amp limit.
If you connect before going into the barrel jack there is no limit.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

Nick Gammon

Quote

I have an Arduino UNO and 2 devices ...


It would help to be more specific about these devices. What are they? Motors? Lights? Relays? And some technical specs would help.
Please post technical questions on the forum, not by personal message. Thanks!

More info:
http://www.gammon.com.au/electronics

metalmouth


Yes.

Do you mean VIN on the power header, or are you calling the barrel jack connector VIN?
The power header is after the reverse polarity protection diode, that diode has a 1 amp limit.
If you connect before going into the barrel jack there is no limit.


:smiley-mr-green: I'm not really very familiar with technical stuffs but I'll try to use your suggestion. Thanks for your reply

Quote

I have an Arduino UNO and 2 devices ...


It would help to be more specific about these devices. What are they? Motors? Lights? Relays? And some technical specs would help.


Sorry sir this device

http://www.e-gizmo.com/KIT/e-TERM.html
http://www.e-gizmo.com/KIT/images/eterm/E-term.pdf

the other one is a Digital Comparable Electric Coin Selector can't find technical info for this device

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