Re: The NXT bit of information...

In lugnet.robotics, Philippe Hurbain wrote:

>>> Maybe... maybe that sensor is fast enough to establish a bidirectionnal IR link
>>> with a RCX???
>>
>> Ergh,
>>
>> Take a close look at some of the pictures to found online. The LED isn't IR, its
>> a regular old red LED.
>
>
> You are right, John! I was fooled by their text description: "It is also
> possible to turn off the infrared light source that is located below the
> sensor(...)"
>
> Philo

I imagine there is a fair chance the RCX IR sensor can see the red LED, it just
wouldn't register as brightly, so the range would be greatly reduced. LEDs can
have a pretty narrow spectra, but sensors generally just have more of an
"optimum" wavelength. The IR filter that is part of the RCX exterior casing is
probably the real obstacle, and worst case, that can be easily and temporarily
removed without damaging the unit.