ometac IR zraka

Rasprava o el. shemama, pitanja i diskusije. Ako ti treba neka shema, ovdje pitaj.

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mataya
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ometac IR zraka

Post by mataya »

izradio bi ovaj uređaj, a nasao sam samo 2 sheme za koje nemam tranzistore
pa bi molio sheme koje su provjerene.
Sačuvajte drveće => pojedite dabra.
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stojke369
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Post by stojke369 »

IR zraka cega da ometas :?: Daljinca :?:

Postavi te seme da vidimo sta je problem :wink:
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mataya
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Post by mataya »

za ometeanje daljinskog upravljaca.
evo sheme
http://www.elektronika.ba/el.sheme/?akc ... dshema=257
ali nemam tranzistore, a prica se da sa zamjenama ne radi.
Sačuvajte drveće => pojedite dabra.
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Post by stojke369 »

http://www.instructables.com/id/TV-Remote-Jammer!/

Just point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam . The transistor acts as a current source supplying roughly 25mA to the infra red LEDs. To increase the range of the circuit simply decrease the value of the 180 ohm resistor to not less than 100 ohm.

It is required to adjust the 10K potentiometer while pointing the device at your TV to block the IR rays from the remote. This can be done by trial and error until the remote no longer responds.

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