ESP32 IR Remote

ElectronicsIntermediateCost~$10–25Time2–4 hoursResearched

Cost and time are estimates, not measured results.Leads to 1 follow-on build

Build manual

BLUEPRINT MANUAL

ESP32 Universal IR Transceiver

Learn the latest command from a common 38 kHz consumer IR remote, inspect it over Serial, and replay it through a transistor-driven 940 nm emitter.

Flow diagram showing a consumer IR remote feeding a TSOP38238 receiver, demodulated timing entering ESP32 GPIO27 and being stored in RAM, then a Serial replay command sending that timing from GPIO25 at a newly generated fixed 38 kHz carrier through a KSP2222A driver and TSAL6200 emitter to the target device. — The ESP32 learns the envelope timing, not the original optical carrier; replay is deliberately regenerated at 38 kHz.

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