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Chris at The Keeser has constructed a simple circuit to detect infrared light. You can make the project using only 7 parts. A schematic and analysis of operation is also provided. Parts Needed: “Test the circuit by holding it close to an IR remote control and pressing any button. If everything is working (including the remote control) then the LED should light up.” |
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April 21st, 2006
I like the simple circuit. Just to let people know that most video cameras can also be used to detect IR light, it just glows like a normal led in the viewfinder!
April 21st, 2006
Nice small size. This would be great in a repair shop to test remote controls.
December 23rd, 2008
hello..can i replace the IR transistor with IR detector?
December 23rd, 2008
You sure could adapt it for that, you may have a limited range of detection though since many of them have a filter for a specific IR frequency. If you are wanting it to test remote controls you should be fine since most of them use the same frequency.
December 25th, 2008
do u have any project that can detect dark, using infrared phototransistor andvac.
thank you for answer..
December 25th, 2008
do u have any project that can detect dark, using infrared phototransistor and 24 VAC
thank you for answer
September 17th, 2010
i want to do simple project to control home applications like bulb by using infrared transistor&reciver so please give me simple circuit and its operations