Power Led?

[dr.occa]

I'm not sure if this question was already asked (BrentP referenced it somewhere in a Shift Light discussion) but what would be the safest way to wire in an led to indicate that the MJLJ is on?

[brentp]

You can wire in an LED powered by the 5V output side of the voltage regulator- it's the pin on the voltage regulator that connects to the positive side of C2.

A 470 ohm resistor in-line should be enough current limiting.

Regards,

[dr.occa]

You can wire in an LED powered by the 5V output side of the voltage regulator- it's the pin on the voltage regulator that connects to the positive side of C2.

A 470 ohm resistor in-line should be enough current limiting.

Regards,

much obliged brentp! please bear with me; would it be 5V output>470 ohm res>led(- or +?)>+ side of C2???

a lot of you guys on here know way too much about this stuff!!! i'm trying to keep up.

[MartinM]

The 5V output that goes to C2 > 470 ohm res > led+ (the longer lead or the rounded side of the case)

led- (the shorter lead or the flat side of the case) > ground

[dr.occa]

aside from the problems i'm having, thanks for the feedback and help brentp & MartinM!

some pics w/ the new bright white led:

[Ken555]

In my planned installation I can reach the ECU, so I fitted the box with a switch
and bi-colour LED to indicate the map in use.



A Tri-Colour led, fed thru the same DPDT switch that does the switching.

[DannyP]

That's an excellent idea, Ken, I'll be mounting mine in a similar accesible location.

[Ken555]

A bad diagram of how I wired it. The diode is a 3 lead, common anode one. In the UK, Maplin code CJ53H

Powered by the 5V output side of the voltage regulator.

I have a V2 board, so would need changed for a V3.

[dr.occa]

well executed Ken!

[luke6040]

i kno this an old thread but i want to add a power on led and was just wondering where is best to ground it out?
has anyone got some pics or a diagram maybe, i dond wanna get it wrong lol.