Maximum input voltage
I want to connect the turn signal indicators and high beams indicator to my digital dash project (runs on a BS2p40) so I can see their status on my LCD. Rather than the usual setup where the switches ground the indicator lights, the turn signal and high beam lamps work by the appropriate switches providing unregulated positive voltage to the lamps. This can be anywhere from 12v+ to 18v+.
Is 18v within the maximum voltage range for the BS2p inputs? If so, how do I figure out how big the current limiting resistors should be for the inputs?
If not, how should I go about hooking these up?
-Steven
Is 18v within the maximum voltage range for the BS2p inputs? If so, how do I figure out how big the current limiting resistors should be for the inputs?
If not, how should I go about hooking these up?
-Steven
Comments
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Chris Savage
Parallax Tech Support
csavage@parallax.com