Yahoo Groups archive

AVR-Chat

Index last updated: 2026-04-28 22:41 UTC

Message

Re: Need Help with a circuit

2004-08-12 by kc9dag

> I think the problem is there are not enough current to 
> drive the relay. 

oops, posted the wrong schematic... mine was still wrong, but I did 
have the transistor...  The one I ment to post is 
http://www.dpicts.com/Tiny15L-LaserDetector-2.jpg  which has the 
NPN, but I hooked up the transistor the way it is shown on page 3-2 
of the STK500 manual...
so after everyones advice I have changed the schematic to 
http://www.dpicts.com/Tiny15L-LaserDetector-fixed.jpg    I didn't 
add the diode as someone suggested b/c I am actually using a solid-
state relay (an Laa110)...  If someone could confirm my corrected 
schematic I would be very greatfull.  
Thanks again,
Daniel
KC9DAG

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.