what i can connect to Ultrasonic Motion detector circuit

Audioguru

Joined Dec 20, 2007
11,251
He turns on the siren and turns on a strobe light on his other threads.
The motion detector can turn on a coffee maker when it senses somebody coming.
Or it can unlock a door that has an electric lock.
 

CDRIVE

Joined Jul 1, 2008
2,219
He turns on the siren and turns on a strobe light on his other threads.
Yeah, I think I remember that thread.

Here's a novel idea!

Connect the dry contacts of the relay in series with a LED sign's power cable. You can get a 24" model cheap on Ebay! Then program the following message into the displays memory:

Don't forget to say thank you to forum members that help you!
 
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