how to wire an illuminated fire button on an sx350

[Jaffacake]

Has everyone decided what the best way to wire these switches up is? I'd like to do a page on the site to help people so any input would be good. Cheers

Well the mosfet way works pretty well as ive just found out, so chuffed!

 

[1000moths]

Well the mosfet way works pretty well as ive just found out, so chuffed!

I know that in a hana box space can be an issue so I've got some sot-23 prototype adapters coming which should allow me to mount the fet and an SMD resistor to the 3 wires in a very compact package.

 

[1000moths]

Here's what I was talking about, the black wire goes to battery neg, blue to LED neg, white to atty pos. LED pos is then connected to battery pos with appropriate resistor. This is in a Hana clone box just to give an idea of just how compact this is. Anyone interested PM me.

 

[newqt2351]

Well the mosfet way works pretty well as ive just found out, so chuffed!

or neg side dna40 fire button led IN4148 switching diode B-