Safer Security System Alarm Circuit Electronic

Safer Security System Alarm Circuit Electronic

Safer security system alarm circuit electronic.

It”s a somewhat unusual application of a National Semiconductor LM3915 IC, normally used to drive LED” bargraph displays. That chip happens to contain the right combination of comparators and logic circuits to do what you need.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.