Domoticz

Hello there

I'm trying to use the PIR detector from my old alarm to use them as motion detectors on the Piface. I have measured the voltages and it looks like 6Vdc so probably should be ok.

Has anyone done something similar before? Just thinking whether I need a signal splitter or I may just join the signals.

Any crazy feedback is welcome

The maximum voltage on the input pins is 3.3V. You can use a small circuit like download/file.php?id=188 to protect your piface.

Thank you!

I did look for documentation re the Piface for max input, all I could see is 5Vdc with optional pull ups to 3.3Vdc

Ok, for my setup it looks like I need to put the inputs in tristate mode (external pull up).

Haven read the Piface.conf documentation... there's nothing that mentioned it.

Is there any way to do this?
With WiringPi it was possible to use tristate