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LED Wiz with current parts question
Epyx:
In researching and assistance from members (Thanks Kman!) I understand the 500ma limit of the LED Wiz before requiring external power. I have the following:
12x5v Novagems
2x5v Sanwa Joy mod LEDs
1xRGB GGG trackball mod kit
So am I safe in assuming that based on ~20ma per light I should be fine with my 15-18 LEDs running off the LED Wiz?
Franco B:
If you are using single colour LEDs in the Novagems then you should be fine. You will have 12 buttons lights + 2 joys + 3 from the trackball RGB which @20mA would draw 340mA at full tilt.
You will need 17 outputs from your LED Wiz.
Epyx:
Thanks FrancoB...yes all the LEDs are single colour (green) with the exception of the RGB trackball (GGG)
RandyT:
--- Quote from: Epyx on March 09, 2010, 03:55:07 pm ---In researching and assistance from members (Thanks Kman!) I understand the 500ma limit of the LED Wiz before requiring external power. I have the following:
12x5v Novagems
2x5v Sanwa Joy mod LEDs
1xRGB GGG trackball mod kit
So am I safe in assuming that based on ~20ma per light I should be fine with my 15-18 LEDs running off the LED Wiz?
--- End quote ---
You are going to need external power for this setup. Assuming your Joy mods are using a single 20ma LED each, you will need about 1700ma, which is well over what the USB port can provide.
RandyT
darcyp:
--- Quote from: RandyT on March 10, 2010, 10:17:07 pm ---You are going to need external power for this setup. Assuming your Joy mods are using a single 20ma LED each, you will need about 1700ma, which is well over what the USB port can provide.
--- End quote ---
This confuses me. Wouldn't he be effectively using 17 leds (14 single color and 1 rgb), thus needing 17x20=340 ma? Or does the trackball kit draw more power?