Hi All I have a need for an IR led and IR optotransistor. Something really basic that will monitor mechanical movement over a short distance such as 10-20 mm. I know what it is that I need, I just don't have the part numbers, which doesn't help when phoning electronic suppliers. If anyone has been using something similar and you have the partnumbers I will appreciate it. I am particularly interested in the low-cost plastic versions which are side facing, so you can make them lie flat on their backs, which gives a good space saving option. Any information will be appreciated, even just a site which have it listed with data and maybe some images. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu