WiiLi.org

[TheDro]

Well, I went to the Source today and they don't have IR LEDs... guh. Oh and I did some calculations today and you definitely need a resistor (unless you know the internal resistance of the source voltage you're using) because if you supply 1.25 volts to a diode instead of 1.2, you get about 150mA instead of 20mA, which is bad. To answer your question about the using a 9V battery, assuming the internal resistance of the battery is negligible (it is so for AA which i tested today and car batteries) you still have to know HOW the LEDs are connected: parallel/series.

Could someone with a voltmeter and a resistor with a known value make a couple measurements for me? Measure the Sensor Bar Output Voltage (that red thing on the back) of the Wii directly when there is no load, then measure the SBOV again but with a known load(200-100 maybe 50 ohms) and post it here in this forum.

Thx in advance

[Einlanzers]

I thought I read somewhere that there are 10 LEDs connected in 2 pairs..and each pair is parallel? I have no idea how that works. I'm merely a Computer Science guy

[TheDro]

I suppose each 5 led pack is in series and the two packs are in parallel. With that you should need to apply ABOUT 6V and one resistance depending on the leds for which I still don't have the specs.

[Einlanzers]

I ended up finding an AC adapter that has multiple outputs. I electrical taped the spliced ends into the tip so that I can still re-use the AC adapter in the future. I initially had it set to 6V and that was REALLY bright. Then I set it to 4 (or 4.5) and it was still kinda bright. I think I ended at like 3 (or 3.5) and it seems to work fine. I ran a voltmeter (is that the name of it?) on it and it seems to be giving out like 6V after the load of the LEDs. Is that normal?

Thanks,
Einlanzers

[Oinquer]

normally AC Adapters aren't normalized....they're normally just plain cheap...which end up being not currently regulated...sometimes you get 18V when you should get 12V ......
Still you should have a resistor in it...else you're prolly gonna short Sensor bar lifespan....
get one resistor like 370 Ohms (it can be lower, your choose since you regulate Voltage input)...then regulate it...other thing i was thinking is...
you can get an Linear potentiometer (variable resistor) choose something like 10K Ohms and regulate it and check how bright the led's are.... (just a tought)
Anyway...be sure to put a resistor in the Sensor bar...else its lifespan it will be short.
it can be something like 10 Ohms or 100 Ohms...even 1000 Ohms since you regulate voltage input altough i would say something like 220 Ohms or 370 Ohms i think.

[Einlanzers]

Thanks. I'm not sure if I'm actually going to do this...as I already bought a new sensor bar for my Wii (since I butchered this one), and I bought a premade wireless one on eBay for like $5 with shipping... so I'll probably just leave it all hacked up as it is (working) until it does possibly burn out..
(This electrical stuff is over my head )

[Frivolous Sam]