Lesson 5_What is Single/ Four Channel Infrared Beam Sensor?

What is a single-channel / four-channel infrared detector ?
Different channels of infrared light have different frequencies. Four channels of infrared light can emit infrared light of four frequencies. Just like a radio station, the correct frequency can receive the correct signal.
When two sets of infrared are stacked on the same side, the receiver will receive signals from two transmitters at the same time. Therefore, a four-channel infrared detector must be selected to determine the correct signal. Please refer to the picture description.
Single-channel / four-channel infrared products: https://reurl.cc/Qdpo0O
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#Four channels Infrared can stack two layers