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Re: [AVR-Chat] Need Help with a circuit

2004-08-12 by Dave VanHorn

At 10:29 PM 8/11/2004, Jeffrey Engel wrote:

>Daniel,
>
>The AVR can't drive the relay directly.  You'll need a
>transistor (or something) to handle the current.

Well, there are always exceptions. I've seen relays that close at <3mA, but they are not common, and as I said, large and expensive. 
The coil inductance is large, and stored energy also large.

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