m5::unit::UnitIR::config_t Struct Reference

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#include <unit_IR.hpp>

Public Attributes
uint32_t	tick_ns {1000}
	RMT tick resolution in nanoseconds (default: 1000 = 1us)
uint16_t	rx_ring_buffer_size {1024}
	RX ring buffer size in bytes.
uint16_t	rx_idle_threshold {20000}
uint16_t	rx_filter_threshold {200}
uint8_t	rx_min_item_count {2}
bool	rx_invert_level {true}

Detailed Description

Settings for begin.

Member Data Documentation

rx_filter_threshold

uint16_t m5::unit::UnitIR::config_t::rx_filter_threshold {200}

RX noise filter threshold in ticks

Note

Filters glitches shorter than this value. 200us is safe for IR signals.

rx_idle_threshold

uint16_t m5::unit::UnitIR::config_t::rx_idle_threshold {20000}

RX idle threshold in ticks (signal gap indicating end of frame)

Note

Default 20000us is sufficient for all standard IR protocols. NEC full frame ~67.5ms but inter-frame gap detection needs ~10-20ms.

rx_invert_level

bool m5::unit::UnitIR::config_t::rx_invert_level {true}

Invert RX signal levels for active-LOW receivers

Note

Most IR receivers (VS1838B on Unit IR, and most built-in IR receivers such as StickS3) are active-LOW, so the default true is correct.

rx_min_item_count

uint8_t m5::unit::UnitIR::config_t::rx_min_item_count {2}

Minimum RMT items for a valid frame (noise filter)

Note

Frames with fewer items are silently discarded. NEC=34, SIRC=13+, RC5=14, RC6=22+, Panasonic=50