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StudentPermalink Reply by beth piver on July 13, 2011 at 8:59am

thanks aaron! ive never understood about the resistor watts, so thanks for clearing this up!

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Permalink Reply by ibewbro on July 6, 2011 at 4:53pm

I just use the LED calculator do all the math for me. Just plug in the supply voltage , voltage drop across resistor, LED current rating, and number of resistors.

 http://ledcalculator.net/

http://ledcalc.com/

 

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Permalink Reply by kimani l♥vs on July 7, 2011 at 9:42am

so for each color led i should type in the numbers and diff resistors? thanks for the links, just bookmarked em, getting tubing next week and led's should be leaving hong kong soon, lol

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Permalink Reply by ibewbro on July 12, 2011 at 3:57pm

ledkid recommends a maximum forward current of 40ma and max forward voltage of 4.5v  for each led. I just used the same values for each led at 40 ma.

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Permalink Reply by Rachel Bond on June 26, 2011 at 12:35am

https://www.facebook.com/home.php?sk=group_116293608457411&ap=1  look for Aaron Groom's posts

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Permalink Reply by cosmickittyz on July 2, 2011 at 8:29pm

I'm having around the same problem, I need to find the right battery and charger, preferably just one 3.7 v battery.

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StudentPermalink Reply by beth piver on July 3, 2011 at 6:50am

all my leds have 1 rechargeable battery. hmmmmm.....maybe its time to put together some info/tutorial on how i made my led hoops.

if/when i do ill post here and/or if anyone is interested you can keep a look out on my site--www.HOOP-TRIX.com.

fun--a new hoop project!

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Permalink Reply by cosmickittyz on July 3, 2011 at 8:41am

Please do ! (:

 

<3

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Permalink Reply by kimani l♥vs on July 5, 2011 at 2:09pm

ill def keep a lookout. You say you use the one rechargeable battery. is it the 3.7 V Lithium? does it have to come out of hoop and put it onto charging dock or can you just plug in a cord and the hoop stays together?

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StudentPermalink Reply by beth piver on July 5, 2011 at 2:17pm

working on it now!

 

the battery that i use is this one:

Protected UltraFire 14500 AA sized 3.6V Li-Ion Rechargeable Battery 900 mAh CR14500 Lithium Ion

and yes, you do need to open the hoop to change it out and put it into a charger. its nice, cuz then you can take extra charged batteries with you and you dont have to worry about your hoop dying and having to be recharged.

ill have all this on the page im putting together.

 

 

 

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Permalink Reply by Rachel Bond on July 6, 2011 at 12:27am

you're awesome Beth, and all the wonderful hoopers who helped you along as well! Kuddos to all! :)

 

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StudentPermalink Reply by beth piver on July 6, 2011 at 4:54am

awwww thanks rachel!

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