S SandSnip3r New Member Jul 31, 2007 #1 where can i get the parts for the dark activated relay?**broken link removed** and, how would i construct it?
where can i get the parts for the dark activated relay?**broken link removed** and, how would i construct it?
P picbits Well-Known Member Jul 31, 2007 #2 An electronics shop ??? Where abouts in the world are you based - it might help people to recommend a local supplier.
An electronics shop ??? Where abouts in the world are you based - it might help people to recommend a local supplier.
S SandSnip3r New Member Jul 31, 2007 #3 im in Las Vegas, NV, USA im going to radio shack already, but, what about on **broken link removed**? i found the first two, the diode and 2N2222 NPN, but i cant find any others
im in Las Vegas, NV, USA im going to radio shack already, but, what about on **broken link removed**? i found the first two, the diode and 2N2222 NPN, but i cant find any others
S SandSnip3r New Member Jul 31, 2007 #4 can i hook up **broken link removed** to my laser perimeter project?
3v0 Coop Build Coordinator Forum Supporter Jul 31, 2007 #5 RadioShack has everything you need. CdS Photoresistors (5-Pack) Catalog #: 276-1657 5VDC/1A SPDT Micro Relay Catalog #: 275-240
RadioShack has everything you need. CdS Photoresistors (5-Pack) Catalog #: 276-1657 5VDC/1A SPDT Micro Relay Catalog #: 275-240
S SandSnip3r New Member Jul 31, 2007 #9 laser is bounced around with mirrors and is shined on Photoresistor and and when beam is broken "someone walks through it" causes temporary DARKness, hence DARK activated relay. https://youtube.com/watch?v=5rEb-KvhWqY
laser is bounced around with mirrors and is shined on Photoresistor and and when beam is broken "someone walks through it" causes temporary DARKness, hence DARK activated relay. https://youtube.com/watch?v=5rEb-KvhWqY
P picbits Well-Known Member Jul 31, 2007 #10 Possibly consider using a phototransistor instead of the CDS sensor then.