Byron A Jeff wrote:

> You really can't hurt an LED by reverse biasing it with low current.

  Oh, I wouldn't bet on that!

  If you meant to say:

  "You really can't hurt an LED by reverse biasing it with low voltage
(5V or less)."

  ... then I would be happy.  My experience suggests that LEDs HATE
being reverse biased into breakdown.

> Hope this helps. This is one task where you really don't need a
> pinout.

  Fine!

  Cheers,
        Paul B.