controler soder point ?

[mikespartian114]

i am doing leds but if i soder it to the 2.something volt on the conroler (the 4 pins for baterie) the leds will always be on if the batrie pack is in. i want the leds to only be on when the controler is working. is there another 3 volt sorce that is on on when the controler is on?

[Modded Matt]

yes there is, what controller type?
matrix:

CG:

[Modded Matt]

red is power disregard the other wires
use the battery ground for negative, or you could use the constant power you were speaking of and put a switch on it??

[mikespartian114]

matrix, and thanx i am gona test it tonite

ok i hoked it up like this

and its not lite. i put a meter and its says there is a solid 2v runing threw when the controlers is on what is going on??????????????????

[802Chives]

lemme guess..... blue leds???

You have to pay attention to forward voltage of you LEDs.... blue is usually 3.2V and since your supply has only 2V you get no light.  With 2 volts you are limited to red or orange LEDs as they are the only ones with low enough forward voltages to make em light with 2V.

Forward voltage is dependent on the color of the LED, so each color in general will have a different forward voltage (Vf)

There is a 3V source on the matrix, in the same spot that is marked on the CG diagram, however this spot will be battery voltage when the controller is off and then goes to 2.99V when the controller is on.  That means that you could drain your battery when it is off, so unless you use a switch to turn your mod on and off when you arent using it, the 3v spot on the matrix will eat ur batteries

[mikespartian114]

no the one i tested were red leds with FW 1.9v, i dind get my blue or yellow ones yet. does this mean my controlers is f up???? i am dona try on a difrent board later

[802Chives]

hmm....

maybe LEDs are backwards?

Also why did you use the ground that you did? I would use the negative battery terminal instead.

[spurgurgle]

hi guys yeah i ad the same problem with some matrix pads. on the cg run off the 3 volt shown above everything fine the lights turn on and off with the pad.

but on 2 out of the 3 matrix pads ive done when i wired to that left hand 2v supply the led's will light up for a second when i turn the pad on but turn off again straight away its most strange. i think there may be a load of od matrix pads out there cos a few people i know av ad trouble witht the matrix pad like my mate got me to put a 3mode sleeper in his matrix pad and i wouldnt work hmmmmmm so i wired it to my pad worked fine then rewired it in his but like a cg (only on the chip) and it no works fine.

[mikespartian114]

how do i know how to buy a CG board controler? is it the new ones like 2008 or later, or are they mixed around?

[Modded Matt]

look for 2008 or later is your best bet, there were a few that may have been packaged in 08 but usually tou are good thats how I tell.