J
Jim Davis
Guest
I need a 30 foot outdoor IR beam "fence" ,
that closes a relay when the beam is broken .
Thanks ... Jim
that closes a relay when the beam is broken .
Thanks ... Jim
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I need a 30 foot outdoor IR beam "fence" ,
that closes a relay when the beam is broken .
Thanks ... Jim
Hi Jim,
This is only for at night, right. I/R's not much good in daylight.
Are you looking for a schematic or commercial product?
Jay
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"Jim Davis" <jim.davis51@verizon.net> wrote in message
news:3F778921.29083E70@verizon.net...
I need a 30 foot outdoor IR beam "fence" ,
that closes a relay when the beam is broken .
Thanks ... Jim
30 foot outdoor broken beam fence
day AND night
part selection by min $
Hi Jim,
How about a modulated I/R beam and receiver.
I/R LEDs $1.00
Modulated I/R receiver $1.50
555 timer to modulate beam. $ .50
A few resisters and capacitors $ .75
Mount TX and RX in tubes to reduce ambient light, 5-volt output. Power
supplies? Schematics?
Jay
"Jim Davis" <jim.davis51@verizon.net> wrote in message
news:3F7A6DA5.92F2E780@verizon.net...
30 foot outdoor broken beam fence
day AND night
part selection by min $
A couple of IR part numbers would be cherry !
RX power supply is 12 VDC car battery .
Should we regulate power to IR RX ?
Broken beam closes relay to 12 VDC car alarm .
happyhobit wrote:
Hi Jim,
How about a modulated I/R beam and receiver.
I/R LEDs $1.00
Modulated I/R receiver $1.50
555 timer to modulate beam. $ .50
A few resisters and capacitors $ .75
Mount TX and RX in tubes to reduce ambient light, 5-volt output. Power
supplies? Schematics?
Jay
"Jim Davis" <jim.davis51@verizon.net> wrote in message
news:3F7A6DA5.92F2E780@verizon.net...
30 foot outdoor broken beam fence
day AND night
part selection by min $
Hi Jim,
I was going to e-mail the schematics to you but your mailbox is full. I'll
try to post them to alt.binaries.schematics.electric later tonight
Jay