> -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf > Of Xiaofan Chen > Sent: 20 November 2008 23:26 > To: Microcontroller discussion list - Public. > Subject: Re: [EE]: DIY opto-isolator furrgetaboutit > > On Thu, Nov 20, 2008 at 11:01 PM, Michael Rigby-Jones > wrote: > > FWIW I have used a red LED as a photodiode before, it did work but > > wasn't very sensitive. > > That is strange. You might use a better photodiode. I would say > that a Photodiode should be much more sensitive than > a LED as the detector. > Yes, a proper photodiode is far more sensitive. I only tried using an LED out of curiosity when I read about the possibility in a magazine many years ago. Regards Mike ======================================================================= This e-mail is intended for the person it is addressed to only. The information contained in it may be confidential and/or protected by law. If you are not the intended recipient of this message, you must not make any use of this information, or copy or show it to any person. Please contact us immediately to tell us that you have received this e-mail, and return the original to us. Any use, forwarding, printing or copying of this message is strictly prohibited. No part of this message can be considered a request for goods or services. ======================================================================= -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist