I am trying to follow these instructions to set up OpenHab with the MySensors Serial Gateway, but ran into a problem when installing the Java (Third command.). Here is a copy of the command and error:

pi@openhabpi:~ $ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
Executing: /tmp/apt-key-gpghome.3nAEDiCNLy/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
gpg: failed to start the dirmngr '/usr/bin/dirmngr': No such file or directory
gpg: connecting dirmngr at '/tmp/apt-key-gpghome.3nAEDiCNLy/S.dirmngr' failed: No such file or directory
gpg: keyserver receive failed: No dirmngr

Please let me know if I missed something.

BTW, this is using the raspbian stretch lite version, dated 2018-03-13.

Thank you!

Thank you for the reply!

I have not yet connected any sensors since I just recently found this website. I like the idea and have ordered parts, but it will be a while before they arrive. But yes, I am planning to connect all the sensors with the NRF24 radios.

While I wait for parts, I am trying to determine the best why to interface with OpenHab (which I already have installed on the Pi3). I have been playing with OpenHab for a short while and am no means an expert.

I have reviewed the postings that you mentioned (I saw the before but was confused by it). I appreciate you pointing it out again and for keeping it updated. I will need to figure out what I will still need to do since OpenHab is already on my Pi3.

I am curious as to why you prefer the serial interface over the MQTT? Many references that I have read suggest that MQTT is more flexible. However, since the "only" interface with OpenHab is the Pi3/radio, I suspect that the serial interface is more straight-forward.

Thanks again!

Hi all,

I am new to MySensors and have been reading thru the website for several days trying to figure out what is actually needed to get the sensors working with OpenHab. I see many references to different types of gateways (serial, ethernet, etc), the use of MQTT, and the reference to several bindings.

I guess the basic question is: what is actually needed to integrate sensors with OpenHab?

My current setup consists of a Raspberry Pi 3 running the openHABian image from OpenHab. I would like to continue using this setup, and was thinking about connecting the radio (NRF24) directly to the Pi so I wouldn't need another gateway (ESP8266, Ethernet, etc). It is my understanding that the openHABian image already includes MQTT, and has an MQTT binding built in.

So, would I need any other type of gateway interface? Can't the Pi just keep the received messages internally and route them to/from the local MQTT broker?

Why is there an OpenHab MySensors binding? Is this needed to translate the MySensors message protocol into something that OpenHab can understand?

I have tried to find tutorials regarding this type of setup online, but without success. (Some try, but assume too much knowledge to truly be a tutorial.)

I would appreciate any information that would help clarify the OpenHab/MySensors interface.

Thank you!