This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[CLOSED] Diagnostic Signal K Input Unit Settings Not Working
#1
Video 
It appears the "Diagnostic Signal K Input" screen should list (Capture-2) the Signal K items received via MQTT (Capture-1) so that a data type and units can be assigned to the item. As you can see electrical.solar.SensorSourceVoltage has no unit assigned. It appears all items are being added to the Signal-K tree as strings rather than the relevant int or float. Does this describe the intention? Am I not understanding the desired functionality? Additionally it does not appear voltage is provided as an option when selecting the unit button. Thank you in advance. Anthony[Image: Capture-1.JPG][Image: Capture-2.JPG]
  Reply
#2
Not a bug.
SignalK does not work as you think. It uses only SI units. So there is no need to show the unit. Openplotter does use a file (keyswithmetadata.json) from SignalK which describes some SignalK values + some with the SI unit. You can add sentences to /usr/lib/node_modules/signalk-server/node_modules/@signalk/signalk-schema/dist/keyswithmetadata.json if you want to be able to use/see the private units in Diagnostic. But keep in mind the convertion to private unit is only for Diagnostic !!!

Temperatures in SignalK are always in SI unit Kelvin. Your value electrical.solar.Sensor.temperature seems to be wrong (-189,31 °C).
  Reply
#3
If you name the key according to the spec then in the diagnostic window it will have the correct suffix -
http://signalk.org/specification/1.0.4/d...expvoltage
/electrical/solar/<RegExp>/voltage

But that doesn't help that much, sending with MQTT the value will still be a string which can be limiting if using the  KIP app to view the data and most likely elsewhere.
One workaround would be to use signalk NodeRed app to grab the data coming in and change it to a float then send it on to signalk >
[Image: 905R4tm.png]


[Image: GeeDunE.png]

Code:
[
   {
       "id": "c0a37a24.2adf68",
       "type": "mqtt in",
       "z": "f792bbef.555918",
       "name": "MQTT topic",
       "topic": "test",
       "qos": "2",
       "broker": "bda9193b.205c18",
       "x": 200,
       "y": 240,
       "wires": [
           [
               "eaba93f9.b07d3"
           ]
       ]
   },
   {
       "id": "eaba93f9.b07d3",
       "type": "function",
       "z": "f792bbef.555918",
       "name": "change Str  to float",
       "func": "msg.topic = \"electrical.solar.SensorSource.voltage\";\n//msg.payload = parseFloat(msg.payload);\nreturn msg;",
       "outputs": 1,
       "noerr": 0,
       "x": 370,
       "y": 220,
       "wires": [
           [
               "aa8a5862.f22138",
               "a9e94ec.7d774b"
           ]
       ]
   },
   {
       "id": "aa8a5862.f22138",
       "type": "debug",
       "z": "f792bbef.555918",
       "name": "",
       "active": false,
       "tosidebar": true,
       "console": false,
       "tostatus": false,
       "complete": "true",
       "x": 550,
       "y": 200,
       "wires": []
   },
   {
       "id": "a9e94ec.7d774b",
       "type": "signalk-send-pathvalue",
       "z": "f792bbef.555918",
       "name": "",
       "source": "",
       "x": 590,
       "y": 260,
       "wires": []
   },
   {
       "id": "bda9193b.205c18",
       "type": "mqtt-broker",
       "z": "",
       "name": "openplotter",
       "broker": "10.10.10.1",
       "port": "1883",
       "clientid": "",
       "usetls": false,
       "compatmode": true,
       "keepalive": "60",
       "cleansession": true,
       "birthTopic": "",
       "birthQos": "0",
       "birthPayload": "",
       "closeTopic": "",
       "closeQos": "0",
       "closePayload": "",
       "willTopic": "",
       "willQos": "0",
       "willPayload": ""
   }
]
  Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)