@martinhjelmare
Would you mind to elaborate a bit more?
I am not sure how to alter the script.

Sorry, I forgot to ask, is it implemented yet?
I just scrambled through the code at HA
https://github.com/balloob/home-assistant/blob/dev/homeassistant/components/switch/mysensors.py
and I could not detect the RELAY type. But than again I do not know alot of both of the systems, just guessing.

Well I will look into, thank you!

I do not know if this is the right place for further problems, if not tell me.

I tried to remote control a relay today
I used the official sketch of MYS at https://github.com/mysensors/Arduino/blob/master/libraries/MySensors/examples/RelayActuator/RelayActuator.ino

Even though it Looks like they are properly connected, there is no switch appearing on HA-Dashboard.
Log of the Sensor-Arduino Running RelayActuator.ino:

send: 1-1-0-0 s=255,c=0,t=18,pt=0,l=5,sg=0,st=ok:1.5.1
send: 1-1-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
read: 0-0-1 s=255,c=3,t=6,pt=0,l=1,sg=0:M
repeater started, id=1, parent=0, distance=1
send: 1-1-0-0 s=255,c=3,t=11,pt=0,l=5,sg=0,st=ok:Relay
send: 1-1-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.0
send: 1-1-0-0 s=1,c=0,t=3,pt=0,l=0,sg=0,st=ok:

Log of HA:

INFO:mysensors.mysensors:/dev/ttyUSB0 is open...
INFO:mysensors.mysensors:Connected to /dev/ttyUSB0
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:gateway started, id=0, parent=0, distance=0
INFO:homeassistant.components.sensor:Updating sensor entities
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=0,t=18,pt=0,l=5,sg=0:1.5.1
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=3,t=6,pt=1,l=1,sg=0:0
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:send: 0-0-1-1 s=255,c=3,t=6,pt=0,l=1,sg=0,st=ok:M
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=3,t=11,pt=0,l=5,sg=0:Relay
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=3,t=12,pt=0,l=3,sg=0:1.0
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=1,c=0,t=3,pt=0,l=0,sg=0:
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:homeassistant.components.device_tracker.nmap_tracker:Scanning
INFO:homeassistant.components.device_tracker.nmap_tracker:No MAC address found for 192.168.2.111
INFO:homeassistant.components.device_tracker.nmap_tracker:nmap scan successful
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=0,t=18,pt=0,l=5,sg=0:1.5.1
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=3,t=6,pt=1,l=1,sg=0:0
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:send: 0-0-1-1 s=255,c=3,t=6,pt=0,l=1,sg=0,st=ok:M
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=3,t=11,pt=0,l=5,sg=0:Relay
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=255,c=3,t=12,pt=0,l=3,sg=0:1.0
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=1,c=0,t=3,pt=0,l=0,sg=0:
INFO:homeassistant.components.mysensors:update sensor_update: node 1```

Nice!
Thank you, I installed it, works like a charm!
Going to try a HA switch tomorrow!
Are 1-Wire Components like AM2301 Temp-Sensor already supported?

Alright then, I started to feel a bit dumb
If you need any help let me know!
Thank you for looking into the issue

The Whole log is:
screenlog.txt
The Sketch is:
BinarySwitchSensor.ino
The Sketch was not modified and should be the same as the one of the MYS download Page.

Do I maybe have to add anything to my config.yaml besides the plattform thing?

@martinhjelmare
I Changed the Version, yet there is nothing added to the dashboard.
I used the sample BinarySwitch example sketch of MYS. The Sensor Arduino has a button connected to Pin 3.
I'm relativly new here so maybe I missed something. And I don't know what Values you mean.

@martinhjelmare
Got that worked out, changed the Name in the Persistence File that HA created!
But it still does not show up.
HA Log:

INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=3,c=1,t=16,pt=2,l=2,sg=0:1
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=3,c=1,t=16,pt=2,l=2,sg=0:0
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=3,c=1,t=16,pt=2,l=2,sg=0:1
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=3,c=1,t=16,pt=2,l=2,sg=0:0
INFO:homeassistant.components.mysensors:update sensor_update: node 1

Persistence File:

{"1": {"sketch_version": null, "children": {"3": {"type": 0, "values": {"16": "0"}, "id": 3}}, "sketch_name": "testgateway", "battery_level": 0, "sensor_id": 1, "type": 17}}

@martinhjelmare
Thank you!
Seems to Load now
I disabled persistence because I did not seem to need it right now.
I am getting the following log when I Push the Wireless Button, it seems to work.
But I dont see any now nodes / Sensor on the Dashboard. Did I forget something?

INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=3,c=1,t=16,pt=2,l=2,sg=0:1
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:homeassistant.components.mysensors:No sketch_name: node 1
INFO:homeassistant.components.mysensors:No sketch_name: node 1
INFO:mysensors.mysensors:n:0 c:0 t:3 s:9 p:read: 1-1-0 s=3,c=1,t=16,pt=2,l=2,sg=0:0
INFO:homeassistant.components.mysensors:update sensor_update: node 1
INFO:homeassistant.components.mysensors:No sketch_name: node 1
INFO:homeassistant.components.mysensors:No sketch_name: node 1

Hi,
I installed Home-assistant and Setup a MySensor SerialGateWay + MySensor Switch.
Yet when I start HA It shows this Error:

16-01-18 17:27:38 homeassistant.components.mysensors: Missing required configuration items in mysensors: gateways
16-01-18 17:27:38 homeassistant.bootstrap: component mysensors failed to initialize```

Config:

mysensors 1:
  gateways:
    - port: '/dev/ttyUSB0'
      persistence_file: 'hass_log/mysensors.json'
  debug: true
  persistence: true
  version: '1.5'