It works now.
I just added gw.sendSketchInfo command in the setup of my sketch script.

Hi,
After installing MySenor plugin on Jeedom, I switched a serial gateway arduino on my raspberry, and send messages by an arduino (value 1 and 0 every 10 seconds).

I see it in MySensorsLog in my plugin jeedom interface :
Thu Jan 05 2017 11:05:54 GMT+0000 (UTC) - Jeedom url : http://192.168.0.49:80/plugins/mySensors/core/api/jeeSensors.php?apikey=(...), gwAddress : /dev/ttyUSB0
DEPRECATION: Please use require('serialport') instead of require('serialport').SerialPort
Thu Jan 05 2017 11:05:54 GMT+0000 (UTC) - server bound on 8019
Thu Jan 05 2017 11:05:54 GMT+0000 (UTC) - connected to serial gateway at /dev/ttyUSB0
Thu Jan 05 2017 11:05:55 GMT+0000 (UTC) : 0;0;3;0;9;gateway started, id=0, parent=0, distance=0
Thu Jan 05 2017 11:05:55 GMT+0000 (UTC) : 0;0;3;0;14;Gateway startup complete.
Thu Jan 05 2017 11:05:59 GMT+0000 (UTC) : 0;0;3;0;9;read: 0-0-0 s=3,c=1,t=16,pt=2,l=2,sg=0:1
Thu Jan 05 2017 11:06:00 GMT+0000 (UTC) : 0;3;1;0;16;1
Thu Jan 05 2017 11:06:10 GMT+0000 (UTC) : 0;0;3;0;9;read: 0-0-0 s=3,c=1,t=16,pt=2,l=2,sg=0:0
Thu Jan 05 2017 11:06:10 GMT+0000 (UTC) : 0;3;1;0;16;0

But not any mySensor node appears in Jeedom with inclusion mode !
Thanks