I need to get 12 VDC out of the Arudino - Help

I need to find a way to get 12 VDC out of the Arudino in order to work with a relay for sensor for a door access application. Any ideas? Are there any other I/O processors on the market that can work with 12 VDC power?

Thanks.

Are there any other I/O processors on the market that can work with 12 VDC power?

Directly the answer is no, nothing works on that voltage.

Indirectly the answer is all of them. You need a transistor. Look at this link:- http://www.thebox.myzen.co.uk/Workshop/Motors_1.html

google splat, they run off 12 volt and can control 12 volt components directly, they are more expensive, and less versatile though.

google splat, they run off 12 volt and can control 12 volt components directly

Rubbish. Post a link.

SPLat just has transistors on the development board.

The picture above illustrates the bidirectional I/O points connected to some typical output loads. When an output is ON it connects the I/O pin to 0V via a Darlington transistor.

http://www.splatco.com/skb/skbredir.htm?toc.htm?4187.htm

So like I said rubbish:- It doesn't produce 12V output. It has an external open collector buffer that can pull down. That is a world away from saying it is a processor that outputs 12V. With the same buffer the arduino would work the same.

I need to use the power from the Ardunio board to send a 12 VDC pulse (Latching) pulse to a 12 VDC relay to control access to a door. I can only get a 5 VDC pulse signal using a comparison circuit. The relay is outside the Arduino....I need to bump up the voltage to 12 VDC pulse. I can use 12 VDC for powering the Arduino; however the Arduino only outputs 5 VDC. Everything works fine but I do not want to use a 5 VDC relay Arduino ----->Comparison circuit ----->Relay -----> 12 VDC Elec lock _** 5 VDC 5VDC 12 VDC [/color][/i]** _

http://grathio.com/2009/11/secret-knock-detecting-door-lock.html

Circuit is a knock knock lock circuit. I can make the 5 VDC motor work but want to replace it and connect it to a Normal closed relay for a 12 VDC electric lock

I will give it a try....thanks richard!!!