Before discussing the wiring method of the three corners of infrared receiving LED, we first need to understand the basic structure and function of infrared receiving LED. Infrared receiving LEDs typically have three pins, namely positive (long leg), negative (short leg), and signal output pin. They are widely used in remote control, infrared sensors and other fields for receiving and recognizing infrared signals.

Next, we will provide a detailed explanation of the wiring steps for the three corners of the infrared receiving LED. Firstly, ensure that you have prepared the necessary tools and materials, including infrared receiving LEDs, appropriate resistors, wires, and welding equipment. Then, follow the steps below to connect the wires:

1. Determine the positive and negative poles: Firstly, we need to determine the positive and negative poles of the infrared receiving LED. Usually, the positive pin of an infrared receiving LED is longer, while the negative pin is shorter. You can use a multimeter for voltage testing to ensure correct identification.

2. Connect the power supply: Next, connect the positive pin to the positive terminal of the power supply through an appropriate resistor. The function of a resistor is to limit the current and protect the infrared receiving LED from damage. Make sure to choose the appropriate resistance value to match your power supply voltage and the rated voltage of the infrared receiving LED.

3. Connect the signal output pin: Then, connect the signal output pin to the appropriate position on your circuit board. This pin converts the received infrared signal into an electrical signal for subsequent processing. You can use wires to connect it to the corresponding pins or ports on the circuit board.

4. Fixed infrared receiving LED: Finally, fix the infrared receiving LED in the appropriate position so that it can receive the infrared signal. You can use appropriate fixing devices such as heat shrink tubing, tape, etc. to secure it to the circuit board or other suitable location.

During the wiring process, the following points should be noted:

*Ensure the use of appropriate resistance values to limit current and protect the infrared receiving LED.

*When connecting signal output pins, make sure to connect them to the correct pin or port for subsequent signal processing.

*When fixing the infrared receiving LED, ensure that its position is appropriate so that it can receive the infrared signal.

After completing the wiring, you can perform a functional test to verify whether the infrared receiving LED is working properly. You can use an infrared remote control or other infrared signal source to send a signal to the infrared receiving LED and observe whether it can correctly receive and output the signal.

In short, the wiring method for infrared receiving LEDs is relatively simple, just connect the positive and negative poles and signal output pins correctly. During the wiring process, pay attention to using appropriate resistance values, ensuring that the signal output pins are connected to the correct positions, and fixing the infrared receiving LED in the appropriate position. After completing the wiring, perform a functional test to verify its normal operation. I hope this article can help you correctly wire the infrared receiver LED and achieve its expected function.