mindagap Messages 3 Reaction score 0 Thread starter Apr 26, 2006 #1 how does a automatic door works? anythings about the photodiode? and lazer? plx help~~~~
berkeman Admin Messages 69,691 Reaction score 25,461 Apr 26, 2006 #2 You must have some idea about how they work, right? Why don't you tell us how you think they work, and we'll help you from there...
You must have some idea about how they work, right? Why don't you tell us how you think they work, and we'll help you from there...