The launcher consists of a command key, a command code system, a modulation circuit, a driving circuit, and a launch circuit. Therefore, when the command key is pressed, the command code signal is generated by the command code circuit. It fires a command code signal that has already been modulated. <br><br>The receiving circuit consists of a receiving circuit, an expanding circuit, a modulation circuit, a command decoding circuit, and a driving circuit. The command decoder realizes control of various commands by encoding and decoding the command signal. Here is the infrared module receiving circuit graph on the left. .
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