Switches

[MFT]

Hi John, You helped me with the cow for the Kid's Museum in Ludington. Well, I want to put a normally open push button switch on the AP16 for manual operation.
What should the rating be on this type of switch for this board? Example: 4A 125 Vac.
Thanks

[livinlowe]

Any switch will do. You are dealing with TTL voltages (usually 5V, could be 3.3 on the AP-16), and very little current. A 4A 125 V switch will do nicely!!

[JonnyMac]

That will work fine; the AP-16+ uses 3.3v and the start input (dry contact) is limited internally to 0.33mA (1/3 of a milliamp).

[MFT]

Thanks! The board is working great, but the PIR sensor isn't. Those kid's just put off to much heat!
It will be fun to manually make her moo.

[JonnyMac]

If you're going to use a PIR or mat-switch -- something that can be triggered by your victims visitors -- you'll want to use the POST-play delay pot to prevent re-triggering too quickly.  We've only tested the board with the Parallax PIR connected to the PIR port; if you're using another type of PIR it should, of course, have normally-open contacts (many commercial PIRs are normally-closed) and be connected to the SWITCH INPUT port