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Re: The FreeEMS Box !

Posted: Wed Feb 19, 2014 10:04 pm
by Fred
Added benefit of using a non-momentary switch = keeps the engine from starting should a low-life try to steal the car. If you install R7 in place of D1 then you could pretty safely run 2 wires out, externally mount the LED and the switch, and use a sensor ground wire to switch back against.

Re: The FreeEMS Box !

Posted: Wed Feb 19, 2014 10:49 pm
by masterkorp
I key based switch would be nice.

Re: The FreeEMS Box !

Posted: Tue Feb 25, 2014 3:54 pm
by masterkorp
About that key switch, while mumbling around on digi-key, i found this
Image
C & K components Y100AA2C203NQ
With 3 positions, providing a way to somewhat securely getting the board in load mode, and since there are terminals that are complety isolated from each other, one position, can function as power cut off for the board, giving an extra basic security, the key comes out in any position, so you don't need to leave it there.

Datasheet

What do you guys think ?

Re: The FreeEMS Box !

Posted: Tue Feb 25, 2014 7:52 pm
by Fred
Another nice idea! :-)