The series L and C across the contacts do provide some snubbing.   Even if =
it toasts the relay eventually, it's just going to lock up with the coil on=
, and I've expended a $0.25 relay for many k$ of debugging.=20


-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of=
 James Cameron
Sent: Thursday, October 20, 2016 4:08 PM
To: Microcontroller discussion list - Public.
Subject: Re: [PIC] RE: PIC Weak Pull-ups & DIP Switches

On Thu, Oct 20, 2016 at 09:50:41PM +0000, Van Horn, David wrote:
> Wire a 6V relay so that the normally closed contacts are in series=20
> with the relay. Now add a shielded cable of about a meter, and connect=20
> the shield to the battery side of the contacts, and the center=20
> conductor to the coil side through a good capacitor that can take some=20
> current, 0.1uF or thereabouts, and on the other end,
> fabricate a small coil of 10-30 turns.   Add a pushbutton in series
> with the battery, and you have "Angry Bees".

Te he.  I've found it stops being fun when the contacts weld.  ;-)

Although it was 30 years ago.  Might be better relays now.

--
James Cameron
http://quozl.netrek.org/
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