https://forum.mysensors.org/topic/6694/openhab-2-2-mysensors-serial-gateway-how-to-install

No need to have a 2nd arduino connected through usb. Just attach a nrf chip directly to your pi

@greymarvel said in OpenHAB 2.2 MySensors Serial Gateway - How to install:

@FlipFlap3
Firstly well done for the brilliant instructions . I too have been attempting to use Openhab with my sensors over the last year and to be honest although I've had relative success, because of the limited amount of, up to date and accurate tutorials its been a steep slope to climb. Currently I have Openhabian installed on a Raspberry pi with a Gateway connected to the I/O pins of the Pi and a couple of temp sensors connected ( all be it with difficulty ). It's setup as an Ethernet Gateway but I did try once to setup it up as a serial gateway, unsuccessfully I might add. Out of interest if I did re- install using your setup instructions, Is a serial Gateway better or easier in any way ? it does seem like the most supported option of the 3 for most people on the forum .

Thanks

Sorry for late response (busy with anual reporting lately).

I have tried MTTQ first myself, but I didn't get things working smoothly. 2nd attempt was with serial gateway. Even though I had some problems at first, I did manage to get it working. I had a hard time finding a good tutorial though, so I wrote down the steps I took carefully. Reason for me to put it here was to have a personal backup for my notes and if it would be helpful for anyone else that would be an awesome bonus

I didn't try ethernet gateway yet cause I am happy with the current setup.

@frozenyack Sorry, I can't remember seeing an error like that before.

A year ago I tried to get some sensors going for the first time. Tried mqtt 1st, but failed. 2nd was serial. That worked. In the end it doesnt matter. When it works, you don't have to look at it anymore. You can just power up new sensors and they will pop up in OpenHAB.

Since you attached a nrf24 directly to your pi, I presume you have all your sensors connected eith nrf24 as well.
You could use a serial gateway. I updated my documentation yesterday on how I do it. You can find it on the same sub forum you posted this.

2.3 snapshot doesn't work. 2.2 does

Updated opening post for step by step instruction on installing openhab2.2 with mysensors 2.2 serial gateway binding. If you have any questions, just post them here.

@jic Nope sry, BUT.. I am going to do a fresh install again today. Will check if I can get it to work and make updates to this howto where needed.

Made a reïnstall again and found that something was incomplete and that it didn't work anymore with the stable branche.

Missing in "initial config" is enabling SPI through raspi-config at the start

At installing MySensors replace:
git clone https://github.com/mysensors/MySensors.git --branch master
with:
git clone https://github.com/mysensors/MySensors.git --branch development

echo 'deb http://dl.bintray.com/openhab/apt-repo2 stable main' | sudo tee /etc/apt/sources.list.d/openhab2.list
Now needs to be:
echo 'deb https://dl.bintray.com/openhab/apt-repo2 stable main' | sudo tee /etc/apt/sources.list.d/openhab2.list

sudo wget http://www.oberfoell.com/openhab2/org.openhab.binding.mysensors-2.2.0-SNAPSHOT.jar

sudo chown openhab:openhab org.openhab.binding.mysensors-2.2.0-SNAPSHOT.jar

Somehow this next one always times-out the first time. 2nd attempt does give me a connection after a while
ssh -p 8101 openhab@localhost

solved it

Inside "/home/pi/MySensors/example_linux/mysgw.cpp" or where you downloaded the "git clone https://github.com/mysensors/MySensors.git --branch master" there is this option:

// Grant access to the specified system group for the serial device
//#define MY_LINUX_SERIAL_GROUPNAME "tty"

uncomment to
// Grant access to the specified system group for the serial device
#define MY_LINUX_SERIAL_GROUPNAME "tty"

save file

stop mysgw with "sudo systemctl stop mysgw.service"
remove mysgw from auto start with "sudo systemctl disable mysgw.service"
uninstall with "sudo make uninstall"
installed again

I added openhab to the tty group using "sudo usermod -a -G tty openhab"

full reboot

and it works!

Really grateful for your reply. Tried it and it didn't fix my problem unfortenately

09:43:21.396 [DEBUG] [col.serial.MySensorsSerialConnection] - Connecting to /dev/pts/1 [baudRate:115200]
09:43:21.398 [DEBUG] [col.serial.MySensorsSerialConnection] - Final port list: /dev/pts/1
09:43:21.402 [ERROR] [col.serial.MySensorsSerialConnection] - Can't connect to serial port. Wrong port?
09:43:21.405 [ERROR] [col.serial.MySensorsSerialConnection] - Failed connecting to bridge...next retry in 10 seconds (Retry No.:17)
09:43:21.407 [DEBUG] [col.serial.MySensorsSerialConnection] - Shutting down serial connection!

09:45:14.726 [DEBUG] [col.serial.MySensorsSerialConnection] - Connecting to /dev/ttyMySensorsGateway [baudRate:115200]
09:45:14.728 [DEBUG] [col.serial.MySensorsSerialConnection] - Final port list: /dev/ttyMySensorsGateway
09:45:14.732 [ERROR] [col.serial.MySensorsSerialConnection] - Can't connect to serial port. Wrong port?
09:45:14.735 [ERROR] [col.serial.MySensorsSerialConnection] - Failed connecting to bridge...next retry in 10 seconds (Retry No.:1)
09:45:14.737 [DEBUG] [col.serial.MySensorsSerialConnection] - Shutting down serial connection!

lrwxrwxrwx 1 root root          10 apr 23 09:35 ttyMySensorsGateway -> /dev/pts/1
....
pi@Controller:/dev/pts $ ls -l
totaal 0
crw--w---- 1 pi   tty  136, 0 apr 23  2017 0
crw--w---- 1 root tty  136, 1 apr 23 09:35 1
crw--w---- 1 pi   tty  136, 2 apr 23 09:41 2
c--------- 1 root root   5, 2 jan  1  1970 ptmx

In my /etc/group I have this (filtered out some stuff this noob thinks is obsolete )

root:x:0:openhab
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:pi
tty:x:5:
dialout:x:20:pi,openhab
sudo:x:27:pi
www-data:x:33:
pi:x:1000:
spi:x:999:pi
i2c:x:998:pi
gpio:x:997:pi
openhab:x:119:```