Monoprice Whole Home with Ser2Net not working

Add-ons Bindings
1

Hello,

I just received a Monoprice 6 zone whole home amp. I connected a spare Pi Zero to it with Ser2net however, it is giving me an error. I have the serial port blank and have the ip and port set to what I made ser2net. I know its working because I can control it from telnet. I have attached my debug logs below. It looks like it connects and instantly disconnects. Any help would be appreciated thank you.

2023-08-29 21:05:27.565 [DEBUG] [ternal.handler.MonopriceAudioHandler] - Trying to reconnect...
2023-08-29 21:05:27.567 [DEBUG] [munication.MonopriceAudioIpConnector] - Opening IP connection on IP 192.168.254.232 port 6060
2023-08-29 21:05:29.446 [DEBUG] [munication.MonopriceAudioIpConnector] - IP connection opened
2023-08-29 21:05:29.447 [DEBUG] [unication.MonopriceAudioReaderThread] - Data listener started
2023-08-29 21:05:29.449 [DEBUG] [ternal.handler.MonopriceAudioHandler] - openConnection(): connected
2023-08-29 21:05:29.480 [DEBUG] [ommunication.MonopriceAudioConnector] - Send command ?11
2023-08-29 21:05:29.481 [DEBUG] [ommunication.MonopriceAudioConnector] - Send command ?12
2023-08-29 21:05:29.483 [DEBUG] [ommunication.MonopriceAudioConnector] - Send command ?13
2023-08-29 21:05:29.484 [DEBUG] [ommunication.MonopriceAudioConnector] - Send command ?14
2023-08-29 21:05:29.486 [DEBUG] [ommunication.MonopriceAudioConnector] - Send command ?15
2023-08-29 21:05:29.487 [DEBUG] [ommunication.MonopriceAudioConnector] - Send command ?16
2023-08-29 21:05:29.489 [DEBUG] [munication.MonopriceAudioIpConnector] - Closing IP connection
2023-08-29 21:05:29.491 [DEBUG] [unication.MonopriceAudioReaderThread] - Reading failed: readInput failed: Socket closed
org.openhab.binding.monopriceaudio.internal.MonopriceAudioException: readInput failed: Socket closed
	at org.openhab.binding.monopriceaudio.internal.communication.MonopriceAudioIpConnector.readInput(MonopriceAudioIpConnector.java:127) ~[?:?]
	at org.openhab.binding.monopriceaudio.internal.communication.MonopriceAudioReaderThread.run(MonopriceAudioReaderThread.java:60) ~[?:?]
Caused by: java.net.SocketException: Socket closed
	at sun.nio.ch.NioSocketImpl.endRead(NioSocketImpl.java:253) ~[?:?]
	at sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:332) ~[?:?]
	at sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:355) ~[?:?]
	at sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:808) ~[?:?]
	at java.net.Socket$SocketInputStream.read(Socket.java:976) ~[?:?]
	at java.io.DataInputStream.read(DataInputStream.java:102) ~[?:?]
	at org.openhab.binding.monopriceaudio.internal.communication.MonopriceAudioIpConnector.readInput(MonopriceAudioIpConnector.java:123) ~[?:?]
	... 1 more
2023-08-29 21:05:29.496 [DEBUG] [unication.MonopriceAudioReaderThread] - Data listener stopped
2023-08-29 21:05:29.497 [DEBUG] [munication.MonopriceAudioIpConnector] - IP connection closed
2023-08-29 21:05:29.498 [DEBUG] [ternal.handler.MonopriceAudioHandler] - closeConnection(): disconnected

Thing File:

monopriceaudio:amplifier:a109617349	"Monoprice Amp" [ host="192.168.254.232", port=6060, pollingInterval=15, numZones=6, inputLabel1="Chromecast", inputLabel2="Radio", inputLabel3="CD Player", inputLabel4="Bluetooth Audio", inputLabel5="HTPC", inputLabel6="Phono" ]

ser2net:

connection: &mp_amp
    accepter: tcp,6060
    enable: on
    options:
       kickolduser: true
    connector: serialdev,
              /dev/ttyUSB0,
              9600n81,local
2

What version of openHAB?

Your ser2net configuration looks incorrect. It should be ‘serialdev’:

3

Thanks for the reply, that was a typo on my part putting it here. It is in fact serialdev. I am running 4.0.2 Stable. It states COMMUNICATION_ERROR Amplifier not responding to status requests.

4

Are you able to see the responses from the amp for status queries when connecting via telnet?

I.e. sending the command ?11 followed by the enter key should return a response that looks like this: #>1100010000130809100601.

If not, it is could be that something else is wrong with ser2net, your serial-to-USB adapter is bad or the switches on the back of the amp are set wrong.

5

Ya i can send commands to it. If i send ?11 i can get #>1100000000200707100100.

6

I have a similar setup with ser2net running on its own Pi, port 4444

This is the pertinent part of my ser2net .conf file.

#  BANNER:<banner name>:banner
#    This will create a banner, if the banner name is given in the
#    options of a line, that banner will be printed.  This takes the
#    standard "C" \x characters (\r is carraige return, \n is newline,
#    etc.).  It also accepts \d, which prints the device name, \p,
#    which prints the TCP port number, and \s which prints the serial
#    parameters (eg 9600N81).  Banners can span lines if the last
#    character on a line is '\'.  Note that you *must* use \r\n to
#    start a new line.
#
# Note that the same device can be listed multiple times under different
# ports, this allows the same serial port to have both telnet and raw
# protocols.

# The original config file shipped with the upstream sources can be
# found in /usr/share/doc/ser2net/examples

BANNER:banner:\r\nser2net port \p device \d [\s] (Debian GNU/Linux)\r\n\r\n

4444:raw:0:/dev/ttyUSB0:9600 8DATABITS NONE 1STOPBIT LOCAL
#2001:telnet:600:/dev/ttyS1:9600 8DATABITS NONE 1STOPBIT banner
#3000:telnet:600:/dev/ttyS0:19200 8DATABITS NONE 1STOPBIT banner
#3001:telnet:600:/dev/ttyS1:19200 8DATABITS NONE 1STOPBIT banner

You should check your ser2net configuration.

7

looking further I think your Acceptor line needs an IP address

8

Bit of an update. I am certain the ser2net is working fine. I decided to try it on Home Assistant just to test and it worked perfect there. I much prefer Openhab so hopefully I can find a solution so I don’t have to bridge it.

9

I was able to re-create the issue where a race condition occurs causing the binding to disconnect before the initial status query responses are received. A PR was opened to fix the issue in the next OH release. In the meantime you can use the attached jar (compatible with OH 4.0.x and 3.2.x+) that contains the fixed code.

https://github.com/mlobstein/openhab-addons/releases/download/v2.2.1beta/org.openhab.binding.monopriceaudio-4.1.0-SNAPSHOT.jar

10

Woohoo that worked, thank you so much. Now to properly wire it up lol.