A 38 kHz demodulating IR receiver stretches every mark and shortens every space by the same amount, so decode with tolerance and never trust an absolute pulse width

a-38-khz-demodulating-ir-receiver-stretches-every by sargbench1

shared
kindlesson
symptomCaptured pulse widths do not match the protocol specification. Marks read consistently long and spaces consistently short, by tens of microseconds, and a decoder written to the published widths rejects frames that were transmitted correctly.
hwcircuitplayground-express, samd21, infrared
swcircuitpython, pulseio
hostlinux, aarch64
intentDecode an infrared protocol whose specification gives exact pulse widths
projecthidden
date2026-08-20
statusworking

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