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[OpenWrt Wiki] LIRC audio_alsa
https://openwrt.org/docs/guide-user/hardware/lirc-audio_alsa
LIRC audio_alsa LIRC is a package that allows you to decode and send infra-red signals of many (but not all) commonly used remote controls. Be aware you'll need a sound card with microphone input. A cheap usb sound card can do the job. The audio_alsa module lets you to use a soundcard input to receive infrarred signals. The basic idea is that the output of the IR module …
LIRC - Linux Infrared Remote Control
https://www.lirc.org/audio-alsa.html
LIRC - Linux Infra-red Remote Control. Using the ALSA audio IR receiver driver Hardware. This driver supports the IR-audio IR receiver module. A more detailed description of how to build and set up the hardware can be found by following the link.
lirc-audio_alsa-for-openwrt/Makefile at master · …
https://github.com/probonopd/lirc-audio_alsa-for-openwrt/blob/master/Makefile
Use a soundcard input to receive infrared remote control signals. - lirc-audio_alsa-for-openwrt/Makefile at master · probonopd/lirc-audio_alsa-for-openwrt
LIRC - Linux Infrared Remote Control
https://www.lirc.org/html/alsa-usb.html
LIRC - Linux Infrared Remote Control. Using the alsa_usb driver. First make sure that you have the correct version of ALSA installed (for the SB Extigy/Audigy, this is 1.0.9). The alsa_usb module relies on the alsa device names. /proc/asound/cards lists the number and name of each recognized soundcard: ... [Extigy ]: USB-Audio - Sound Blaster ...
LIRC - Linux Infrared Remote Control
https://www.lirc.org/html/audio.html
Compile LIRC with the audio driver (not the IR diode or alsa ones) and install it as usual. Connect the circuit to the sound-card and set the volume to the maximum level. Start lircd, the -d flag can be used to select the audio device and/or sample-rate, the syntax is api:device[@samplerate[:latency]] or @samplerate[:latency] .
LIRC / Tickets / #169 audio_alsa: LIRC returns previous ...
https://sourceforge.net/p/lirc/tickets/169/
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Simplest LIRC alsa-audio receiver – Stefan's blog
https://ststefanov.eu/?p=142
I made simple jig with one photo-diode and audio jack to plug in microphone input in computer. This is the schematics: Dependent of used photo-diode it can receive signals from up to several meters.
How to connect an IR receiver to an audio card - LIRC
https://www.lirc.org/ir-audio.html
It uses just one piece: a IR module (any, more details on them can be found on lirc home page) and a (very) optional diode. The schematics The basic idea is that the output of the IR module (somewhere in the range from 0 to ~3-4V) can be limited by using the attenuator built into every audio-card (also known as "mixer sliders").
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