Tag: embedded systems

Oscilloscope capture of a real IR command annotated with Header MARK, Header SPACE, MARK, SPACE and repeated transmission.

How an IR Remote Control Works: Carrier, MARK, SPACE and NEC Protocol

Written by giux | Published on Sep 6, 2026 | No comments

How an IR remote control works, explained from real oscilloscope measurements: carrier, MARK, SPACE, header, bit timing and NEC identification.

#38 kHz infrared #digital communication #electronics #embedded systems #infrared communication #infrared remote control #IR carrier frequency #IR decoding #IR receiver #IR remote control #IR signal #IR waveform #mark and space #NEC address #NEC command #NEC frame #NEC IR protocol #NEC protocol #pulse distance encoding #remote control protocol