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transistor BC1815 LED IR battery 3v |
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IR blaster circuit
Audio port can send any kind of signal you need. It can be either digital I/O signal or basic analog signal. It's all about application you will use to generate signals and a way you will light up IR LED. You may need some extra circuitry for this since audio output has very low power, so you may use transistors as amplifier.
IR blaster circuit
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Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
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