[chbot] Cheap opto components

[Andrew Errington]

On Thu, June 18, 2009 17:55, Richard Jones wrote:
> I'm using optical sensors on my micromouse for wall detectors and
> rotation sensors, hence my interest in these. The cheapest infra red LEDs
> and photo diodes come from scrap mice. However if your supply of dead mice
> is running out there are some components on Trademe that may be of
> interest:

Don't forget, scrap mice show up at the SuperShed regularly, and you can
get tiny slotted opto switches from 3.5" floppy drives (track 0 sensor).

Actually, mechanical mice and 3.5" drives are surely fast disappearing. 
Better stock up now.

Andrew