[bhjazz]

So I have an LED hanging off of the Pimeta, and a couple more hanging off of the Tread. To get them to have the same light output (and look the same), I'm going to need to fiddle with resistors. I was thinking of jumpering the RLED spot on the Pimeta, then working with the LED resistor further down the line. I do not have the FET installed.

Any detrimental effects of doing this? I checked the schematic and it appears to be okay.

Thanks!

 

[DaKi][er]

If you want them to be the same brightness, then put them all in series

 

[bhjazz]

Good idea, but not part of the plan.

 

[MisterX]

Why are you going to need to fiddle with the resistors?
If the leds are all the same the resistor to each one would be the same because the voltage is the same.... follow?

 

[DaKi][er]

Quote:

Originally Posted by bhjazz Good idea, but not part of the plan.

So, what is this 'plan' ?

 

[bhjazz]

Quote:

Originally Posted by MisterX Why are you going to need to fiddle with the resistors? If the leds are all the same the resistor to each one would be the same because the voltage is the same.... follow?

I *do* follow. But in this case the LEDs are on two different switches (leave it to me to make things complicated.) The front LED, even with the same power is just far brighter than the other ones, so I want to add a larger resistor to get them to look the same.

...which brings me back to my original question of: can I jumper the connection on the Pimeta board and put the resistor in line somewhere else?

 

[MisterX]

Can't you just pop the LEDs out of the switches and replace them?

It seems to me that would be the easiest solution.


Quote:

can I jumper the connection on the Pimeta board and put the resistor in line somewhere else?

What are you referring to as a jumper here?
(when you say jumper I think piece of wire instead of the component in question, which in this case would short out the psu)

 

[bhjazz]

Here's a lo-tech version

The RLED on the Pimeta board goes from the single RLED pad to the far end of the RFET pad if unused. I just want to put a single piece of wire there to connect the two pads which enable the LED to get power. From there I will run a pair of wires (one of which will contain the resistor) to the LED on the front of the case.

I am only jumpering the RLED connection.

I'm fairly sure this will be fine as I'm not shorting any connection, just moving the resistor off of the board so I don't have to drop one in and out of the holes on the board itself (it could take a few to get the right one).

 

[MisterX]

I see I see said the bind fool to the man that pissed on his wodden leg and told him it was raining outside.

Why not just socket the rled on the amp board?
That way you can plug and play new resistors at will.

And.
Of course your plan will work.

Edit: spelling

 

[bhjazz]

Heh. You are a card, X. The only reason I don't just use the sockets that are already there is because I'd rather not solder the incorrect value in and out a few times on a nice board like that. Socketing is an even better idea, so thanks for the nice tip!
I'll admit it's a hairbrained idea, but that's just who I am.

Thanks, guys!

 

[MisterX]

Quote:

I'd rather not solder the incorrect value in and out a few times on a nice board like that.

That, and it is also a pain in the butt.

If it makes it easier you can always install the resistor for the LED on the ground side.

 

[kklee]

I just went through this exercise myself with a Millett/Steps. I used a breadboard to play with resistor values first to match brightness. I prefer to not put the resistor on the PCB, but attach it to the LED itself. Just make sure you don't overheat the LED leads when soldering (I use an alligator clip to sink the heat away).

 

[bhjazz]

Quote:

Originally Posted by kklee Just make sure you don't overheat the LED leads when soldering (I use an alligator clip to sink the heat away).

Yeah, I've already cooked a few. They really go to hell after that, don't they? I grab a handful of alligator clips as well and drop them on the leads first (well, except for that one time...)