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doc:howto:lirc-audio_alsa [2014/08/09 14:50]
megal0maniac
doc:howto:lirc-audio_alsa [2015/02/07 12:41] (current)
danitool [Prepare your hardware]
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 {{:​inbox:​howto:​lirc-audio_alsa.jpg?​500|}} \\ {{:​inbox:​howto:​lirc-audio_alsa.jpg?​500|}} \\
 A TSOP1736 IR module also works. The +5V should be as stable as possible to avoid power supply disturbances. A TSOP1736 IR module also works. The +5V should be as stable as possible to avoid power supply disturbances.
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 +  * **Improved circuit**: With a low band pass filter to minimize power supply disturbances. Also we put the 100 nF capacitor before the voltage divider, not after, Also we put a 10kohm pullup ressitor in the IR module out to boost the signal.\\ {{:​media:​doc:​howtos:​lirc-audio_alsa-v3.png?​direct&​500|}}\\ One drawback for keeping it simple is the power supply. We can just modify our USB audiostick **isolating one minijack contact** and bridging it to the +5V usb power supply.\\ {{:​media:​doc:​howtos:​lirc_alsa-audiostick.jpg?​400|}}\\ The circuit then can be wired with a minijack cable. We need a little case for the circuit with the IR module receiver, an ADSL microfilter case is perfect for this purpose (you have for sure tons of them from ISPs).\\ {{:​media:​doc:​howtos:​lirc_alsa-case1.jpg?​400|}}
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 ===== Prepare your your software ===== ===== Prepare your your software =====
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 ./​scripts/​feeds install lirc alsa-utils ./​scripts/​feeds install lirc alsa-utils
 </​code>​ </​code>​
-| {{:​meta:​icons:​tango:​package-x-generic.png|}} | The lirc package is not built as default with //​audio_alsa//,​ and it seems partially broken. As a result of this you must modify the Makefile for lirc. <del>Or just download this fixed one: \\ [[https://​files.myopera.com/​danitool/​livebox/​wifiradio/​lirc-audio_alsa-AA.zip|lirc-audio_alsa-AA.zip]] ​\\ Prepared to work with OpenWrt Attitude Adjustment, but it may also work with Backfire. Replace the lirc directory under feeds with this new one.</​del>​ **Dead link** ​|+| {{:​meta:​icons:​tango:​package-x-generic.png|}} | The lirc package is not built as default with //​audio_alsa//,​ and it seems partially broken. As a result of this you must modify the Makefile for lirc. Or just download this fixed one: \\ Mirror: [[https://​github.com/​probonopd/​lirc-audio_alsa-for-openwrt|lirc-audio_alsa-for-openwrt]] \\ <del>[[https://​files.myopera.com/​danitool/​livebox/​wifiradio/​lirc-audio_alsa-AA.zip|lirc-audio_alsa-AA.zip]]</​del> ​Prepared to work with OpenWrt Attitude Adjustment, but it may also work with Backfire. Replace the lirc directory under feeds with this new one.|
  
 As usually build your custom firmware but select alsa-utils, lirc: As usually build your custom firmware but select alsa-utils, lirc:
doc/howto/lirc-audio_alsa.1407588655.txt.bz2 · Last modified: 2014/08/09 14:50 by megal0maniac