Author Topic: IR LED Problems - Weak LED  (Read 17053 times)

Offline atomriot

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Reply #15 on: February 26, 2008, 05:59:23 PM
radio shack sells 2 different ones. they have the 2pack that has the IR photoreceptor and the ir led and the led in that pack is 20ma i think.

the other is the high output IR at 100ma and thats what i am using on all my pens so far and it works great. just make sure you have the proper resistor to pump its max voltage. i always use 1.5 through my LEDs so when you plug your rig into the LED calc, tell it you want 1.5 forward voltage for each LED

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Offline imarzouka

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Reply #16 on: April 02, 2008, 03:32:03 AM
yeah.. I bought from radioshack the ones that come with the IR receiver and they're very very week. Prefer the ones from I used this calculator to calculate the resistor values: and they're working great :)