Re: i-dropper

[nobody@xxxxxxxxxxxx (Dave Houston)]

It should be easy to prevent sunlight from hitting the LED. You could make
it the proverbial "light at the end of a tunnel". ;)

Here's another link that shows it being used for a touchpad like input
device.

     http://mrl.nyu.edu/%7Ejhan/ledtouch/index.html

"Alan Vogel" <avogel2@xxxxxxxxxxxxx> wrote:

>A nice idea, but if this technique is used for keyless entry outdoors then I
>would think that sunlight could saturate the LED.
>
>Here's another clever idea from MERL, based on an idea from Microchip's old
>"Designing For Dollars" competition.
>
>http://www.merl.com/papers/docs/TR2002-21.pdf
>
>
>"Dave Houston" <nobody@xxxxxxxxxxxx> wrote in message
>news:442eaff2.696142765@xxxxxxxxxxxxxxxx
>> Here's a really neat, super secure and super cheap way to implement things
>> like keyless entry.
>>
>>     http://www.merl.com/reports/docs/TR2003-35.pdf
>