Parallax sells a passive IR sensor for about 8 bucks.
http://www.parallax.com/detail.asp?product_id=555-28027
It would be nice if you guys would sell something similar or better yet, something with more than one bit output…
Parallax sells a passive IR sensor for about 8 bucks.
http://www.parallax.com/detail.asp?product_id=555-28027
It would be nice if you guys would sell something similar or better yet, something with more than one bit output…