wbo2 testing question

bcroe at juno.com bcroe at juno.com
Thu Jan 3 22:37:20 GMT 2002


Not a bad idea, but lower your voltage to 5 Volts.  LEDs do
not tolerate reverse voltage well, and 12 V in reverse might
be enough to damage them.  Bruce Roe

On Mon, 31 Dec 2001 12:09:32 -0500 Steve.Flanagan at VerizonWireless.com
writes:
> Here is a quick way to test your led.
> 
> Using a power supply or battery -  apply gnd to the pin on 
> the LED that you have going to ground - from memory I 
> believe it is J4.
> 
> Then Choose a resistor so you get about 10mA through 
> the led.  Connect the resistor (figure about a 1.2K ohm 
> resistor should work fine with 12V) to the Positive side 
> of the power supply, now touch the other side of the 
> resistor to the open (no gnd) pin on the LED, if it lights 
> you have it in correct.


> sf

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