Recent content by Mike_

Hi Monk, I took some measurements. The 'Spot ON' is powered by a 5v regulator from the 12v bus. With the zone is isolated from ELK and the sensor not tripped, I measure +5v (relative to bus -). When the sensor detects motion, this goes low to 0v. With the zone connected to the ELK and...

Hi Monk, I can grab my multi meter and verify exactly what I have done, what would you like me to measure? This works for me every time.

Hi Lagerhead, A TS7805 is a voltage regulator that converts the ELK 12v into 5v. It's a cheap component with three legs, hold it so the writing is facing you, left leg goes to 12v+, middle leg is ground, right leg gives you +5v. An example application of no particular merit; Go out and...

Hi Pete, I have done what you're trying to do. If you're trying to monitor a garage door, open or closed, I suggest that you use a magnetic reed switch and give it a zone, this is usually the correct and elegant solution. So you have a LED that you want to use to trigger a zone and you...