6. Free Space Optical Communication Link — elec2210 1.0 documentation
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Circuit diagram of the four IR LED-Phototransistor pair | Download Scientific Diagram
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A LED or a phototransistor?! | Low voltage. Mostly harmless...
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Electronic Circuit Collection: LED (IR LED1) and the phototransistor (T1) and wireless light switch
AnalogSampling - infrared receiver circuit using an infrared (IR) phototransistor · Issue #239 · gioblu/PJON · GitHub
Sensing objects using Infra Red light
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bjt - IR Led & Phototransistor pair bandwidth issue - Electrical Engineering Stack Exchange
