Help on using the CONTACT option in OH

Setup, Configuration and Use Scripts & Rules
1

RPi 3B+ running openHAB 2.5.0~S1621-1 (Build #1621)

I have an ESP8266-01 setup running Sonoff firmware and want to use it as a door switch. I have been searching through the help files and posts here but haven’t found the information on using CONTACT in the items file. If I open and close the door switch connected to the 8266-01 I can see the following errors in the log file

2019-07-08 12:13:29.406 [WARN ] [eneric.internal.generic.ChannelState] - Command 'OFF' not supported by type 'OpenCloseValue': No enum constant org.eclipse.smarthome.core.library.types.OpenClosedType.OFF

2019-07-08 12:13:29.457 [WARN ] [eneric.internal.generic.ChannelState] - Command 'ON' not supported by type 'OpenCloseValue': No enum constant org.eclipse.smarthome.core.library.types.OpenClosedType.ON

I have the door contact set like this in the items file.

Contact         MF_Dining_Carport          "Carport Door [%s]"          <door>               (MF_Dining, gDoor)             ["Door"]                       {channel="mqtt:topic:41567ab4:carport"}

Group:Contact:(OPEN, CLOSED)               gDoor          "Door"             <door>            (Home)   ["Switchable"]

I’m sure I have something configured wrong. Any pointers?

Thank you

John

2

You cannot send commands to a Contact type Item (in general anyway, there are always exceptions)

Where’s that command coming from, how have you set up your MQTT channel? You want it updating state.

3

I was also looking for the code from the demo program as I thought there was code for door contacts in it. Still searching.

I know back about a couple years ago when I first started working with OH, I did have door switches working. Unfortunately I didn’t save the code.

4

Okay, let us know when you are ready to share your MQTT channel info.

5

Here is the Data from the Sonoff configuration and the OH configuration for the Carport door.
It doesn’t appear that I have set up the MQTT for this.

Config
Config.jpg1066×513 76.2 KB
Door%20Switch
Door Switch.jpg1096×504 122 KB

6

I think in your MQTT channel, you want to get rid of the command topic. You do not want incoming MQTT to trigger an openHAB command, you want a state update.

Then you need to convert incoming ON/OFF payloads from the Tasmota into OPEN?CLOSED suitable for a Contact type Item. The binding has a handy tool to do that - fill in the “Custom xxx value” boxes with ON and OFF as required.

7

Well I was working with the circuit and code yesterday and got it working as a switch to where I can open and close a switch connected to the ESP8266-01 and it will show ON and OFF on the Basic UI. So now I need to figure out how to convert that to show the door OPEN and CLOSE.