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#1
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This Infrared transmitter can activate IR based switching circuits from a distance of 10 meters or more. It is a high power IR transmitter driving two IR LEDs through a Darlington transistor BD 139 to increase range and directionality. IC CD 4047 is wired as an Astable multivibrator and its output pulses depend on the values of C1 and VR1. By adjusting VR1 the output frequency can be adjusted from 10 KHz to 60 KHz. High output from IC1 is available from its Q output (Pin 10) which is used to drive the NPN Darlington transistor BD 139. Resistor R4 restricts the power of IR LEDs to a safer level. Q_ (Pin 11) is the complimentary output of IC1 which is used to connect the indicator LED which flashes in sympathy with the IR signals.
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#2
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part receiver
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#3
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Thanks dear for this information
there are more 15 Km http://www.embedded.com/electronics-...5-km--9-miles- and high-tech http://www.phaseivengr.com/Technolog...FIDSensor.aspx to those who make a LRL for 1km ..... not for 15 km ![]() ![]() ![]() ![]() ![]() maybe 3 m http://www.alibaba.com/product-gs/53...ngle_long.html maybe 12 m http://www.semtech.com/wireless-rf/r...eivers/xe1209/ seller and exclusive representative http://www.stkcheck.com/evs/semtech/...72&mfg=SEMTECH
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God bless all - Nicolas << My channel >> << My shop >> Please do not demand Private Messages .... I cant reply all here....For more information you can send me email ....Thank you for understanding |
#4
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This is a LRL?
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#5
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__________________
God bless all - Nicolas << My channel >> << My shop >> Please do not demand Private Messages .... I cant reply all here....For more information you can send me email ....Thank you for understanding |
#6
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#7
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In several areas of application. My friends must try and flee in the site are you going to understand more.
__________________
God bless all - Nicolas << My channel >> << My shop >> Please do not demand Private Messages .... I cant reply all here....For more information you can send me email ....Thank you for understanding |
#8
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So we can use this in lrl system?
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