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Old 03-26-2019 | 02:43 AM
  #3  
Rad_Schuhart
 
Joined: Jul 2015
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From: Graz, Austria.
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Originally Posted by Tankhobby
<img src="https://cimg8.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/339x121/detector_circuit_acb7f09ffa649f743ea6d09c71c0dbfae ddb607b.jpg"/><br /><br />Use an infrared detector with a 38Khz modulation frequency (40Khz will work also) if you can't get this RadioShack part. Pay attention to pin out if you use a different part, they differ between manufacturers. The 1M and 1uF will give you the flash time when hit. The 180 ohm is current limit for the LED. The 22uF is a filter, a .01uF in parallel next to the IC and detector wouldn't hurt. Shield the detector from ambient light, sunlight, camera flashes and other infrared emitters otherwise it will always flash. I recommend testing indoors in a dark room first.
<br /><br />Very interesting. Do you have more info about it? Posibility of adding sound?<br />
Last edited by Rad_Schuhart; 03-26-2019 at 02:56 AM.
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