NiCad Battery for decorative use?

[whytheheckme]

'Power Passive'....

Say I have a bunch of 12V devices on my OI... And going between the device and ground I have a little 5V $2.79 RadioShack relay. Can I use the output pins on Port 3 to allow power though to the 12V devices? No (Very, very, very, very little) power is being consumed, the relays are simply getting a signal to allow power through.

Is this legal?
Jacob

[Tristan Lall]

Originally Posted by whytheheckme

Say I have a bunch of 12V devices on my OI... And going between the device and ground I have a little 5V $2.79 RadioShack relay. Can I use the output pins on Port 3 to allow power though to the 12V devices? No (Very, very, very, very little) power is being consumed, the relays are simply getting a signal to allow power through.

Originally Posted by <R83>

External power sources of any type are not permitted on any equipment connected to the joystick ports.

That doesn't sound legal. The external 12 V is connected to whatever load you've got, and the relay is connected to the joystick port and the 12 V supply (though one feeds the coil and the other is switched).

[Dave K.]

Originally Posted by whytheheckme

'Power Passive'....

Say I have a bunch of 12V devices on my OI... And going between the device and ground I have a little 5V $2.79 RadioShack relay. Can I use the output pins on Port 3 to allow power though to the 12V devices? No (Very, very, very, very little) power is being consumed, the relays are simply getting a signal to allow power through.

Is this legal?
Jacob

No. There are two relevant postings on FIRST's Q&A forum.

See this one and this one.

If they won't allow an opto-coupler, they aren't going to allow a relay.