sci.electronics.basics
[Top] [All Lists]

Re: Simple DIY tachometer made from old serial ball mouse

Subject: Re: Simple DIY tachometer made from old serial ball mouse
From: Rich Webb
Date: Fri, 26 May 2006 01:26:52 GMT
Newsgroups: sci.electronics.basics
On 25 May 2006 08:14:20 -0700, lmcgill2@xxxxxxxx wrote:

>Thanks for the advice, there is one problem, the phototransistor/diode
>has three leads to it.  Im not sure what it is exactly.  Do you have
>any idea? I mean, i have played around with the IR
>phototransistor/diodes sold at radio shack that have two leads (look
>very similar to a LED), but this is different. Anyway, if anyone knows
>what exactly im dealing with, I guess thats what I need to know. thanks
>a lot, Lucas.


Google is your friend:
http://www.seattlerobotics.org/encoder/200311/johnson/Mousebot.html

-- 
Rich Webb   Norfolk, VA

<Prev in Thread] Current Thread [Next in Thread>