Yamaha RX-V3800 and some older models like DSP-AX1 are great AV-Receiver, but unfortunately they have no control / web interface to manage it from outside. With a USB-Serial adapter connected to the reciver RS-232 interface, a computer or router and lyc you can control the reciver. In addition, a web interface can be created with wlyc to provide a web access to all network devices like PC, smartphone or tablet.

###Linux Yamaha receiver control wlyc (Optional, webinterface for lyc: https://github.com/panticz/wlyc)

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• lyc https://github.com/panticz/lyc
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  • PC / Raspberry Pi / Router (e.g. http://panticz.de/OpenWrt-on-TP-Link-TL-WR1043ND)
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      • USB seriell adapter (e.g. Digitus DA-70156: http://panticz.de/USB-Serial-adapter)
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        • Serial cable
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        • Yamaha AV-Receiver (Yamaha RX-V3800)

###Download binary http://dl.panticz.de/lyc/i386/lyc - i386 compiled
http://dl.panticz.de/lyc/ar9132/lyc - Atheros AR9132 (TP-LINK TL-WR1043ND / TL-WDR4300 router)

1. Download source files
   wget -q https://github.com/panticz/lyc/archive/master.zip -O /tmp/master.zip
unzip -q /tmp/master.zip -d /tmp/
cd /tmp/lyc-master

2. Compile
   make

3. Set up USB Serial adapter
   http://www.panticz.de/USB-Serial-adapter

4. Run command
   ./lyc input dvd
./lyc volume up

https://github.com/panticz/lyc/blob/master/scripts/compile_openwrt_ar9132.sh