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  1. Copilot Answer
    IR Communication using Arduino UNO | Arduino - …

    IR communication makes use of IR (Infrared) waves from the electromagnetic spectrum. An IR LED is used to transmit data wirelessly in digital form (0 – LED OFF or 1 – LED ON). An IR photodiode or IR phototransistor receives this data. The IR receiver (IR photodiode or IR phototransistor) gives different current values according to the intensity of ...

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    Also, the Photodiode is used in the reverse biased mode (It is designed to operate in the reverse biased mode).

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    The data from transmitter side is modulated at 38 kHz before transmission. The TSOP1738 is an IR Receiver with the capability to demodulate signals that have been modulated at a frequency of 38 kHz. Any other TSOP17xx receiver like the TSOP1730 can also be used instead of TSOP1738. The only difference is the carrier frequency that it can demodulate...

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    Wireless IR communication between two Arduino Uno boards. Here, a simple count is transmitted from the transmitter using IR LED. This count is received at the receiver by an IR photodiode or a TSOP1738. The count is transmitted as it is when the receiver is using IR photodiode. The count is modulated at 38 kHz when the receiver is using TSOP1738. W...

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