RFXCOM Cheap PIR Sensor Binding in Openhab2

martinvw · March 2, 2017, 12:13pm

@Jamstah thank for your response, hereby an overview of what I already found out with some references.

There is only one Lighting4 subtype at this moment and none of the other RFXCom message types support a similar concept.

I think the pulse timing is just really technical detail of this message type which was observed to vary by the creators of rfxcom, but I sent them an e-mail

I think that is explained the best by kevin in the an issue he reported

github.com/openhab/openhab1-addons

[RFXCOM] Enhancement to allow use with Lighting4 4 port relay boards

opened 11:13PM - 03 May 16 UTC

closed 08:27PM - 01 Aug 19 UTC

sheppy99

## Current Behavior Only ON and OFF Types are supported commands for sending ou…t in the LIGHTING 4 protocol of the RFXCOM Binding. ## Possible Solution Add Number as an type to RFXComValueSelector.java at or around line 72: ``` NUMBER("Number", NumberItem.class); ``` Add Number Type to RFXComLighting4Message.java at or around line 198 ``` case NUMBER: if (type instanceof DecimalType) { commandId = ((DecimalType) type).intValue(); } else { throw new RFXComException("Can't convert " + type + " to Command"); } break; ``` Add to documentation: Multi port relay item example ``` Number MultiportRelay { rfxcom=">123456.550:LIGHTING4.PT2262:Number" } ``` where 123456 is the 6 character address of the relay and 550 is the command length in milliseconds To send to the item in a rule needs to read something like this: ``` when Item something changed then { MultiportRelay.sendCommand(15) } end ``` The number in brackets represents the state you want the relays to be in. Each relay on the card is controlled by a binary bit with number "0" being all Off, number "15" being all On, number "1" being the first relay on, number "2" being the second relay on etc ## Context It allows use the binding to be used with products such as this http://www.aliexpress.com/item/High-Quality-12V-4CH-Wireless-Remote-Control-Relay-Switch-4-Transceiver-with-Receiver-Compatible-with-2262/32383896424.html ## Your Environment This is tested and working with Openhab V1.8.0, Raspberry Pi3, RFXCOM binding and external 433MHz USB Transceiver. Unfortunately I can't understand how to get Eclipse / Local GIT / Remote GIT to combine my branches / pulls into something usable so I have copy and pasted the changes into here. ##

The initial support for some of the s1/s24 commands is added in openHAB (1.x) by SpeederC:

github.com/openhab/openhab1-addons

Several LIGHTING4 commands not supported in RFXCOM binding

opened 11:10PM - 20 Jan 16 UTC

closed 05:44AM - 12 Jan 17 UTC

buzink

enhancement

I bought some cheap [contact](https://github.com/openhab/openhab/blob/master/bun…dles/binding/org.openhab.binding.rfxcom/src/main/java/org/openhab/binding/rfxcom/internal/messages/RFXComLighting4Message.java) and motion sensors based on the 1527 chipset. I tried to use them with the RFXCOM binding. Unfortunately the devices do not send an ON command on contact, but a UNKNOWN command. Domoticz treats these commands as ON, so they can be used in that platform without problem (if you set auto update to OFF after a few seconds). Unfortunately, openHAB throws exceptions. I think I tracked the problem down to [this file](https://github.com/openhab/openhab/blob/master/bundles/binding/org.openhab.binding.rfxcom/src/main/java/org/openhab/binding/rfxcom/internal/messages/RFXComLighting4Message.java) If i interpret the code correctly, all command types of the LIGHTING4 protocol are defined ([line 70](https://github.com/openhab/openhab/blob/master/bundles/binding/org.openhab.binding.rfxcom/src/main/java/org/openhab/binding/rfxcom/internal/messages/RFXComLighting4Message.java#L70)), but only ON/OFF is handled correctly, the rest throw exceptions ([line 190](https://github.com/openhab/openhab/blob/master/bundles/binding/org.openhab.binding.rfxcom/src/main/java/org/openhab/binding/rfxcom/internal/messages/RFXComLighting4Message.java#L190)). Additionally, the RawData type is allowed ([line 93](https://github.com/openhab/openhab/blob/master/bundles/binding/org.openhab.binding.rfxcom/src/main/java/org/openhab/binding/rfxcom/internal/messages/RFXComLighting4Message.java#L93)) but not implemented ([line 232](https://github.com/openhab/openhab/blob/master/bundles/binding/org.openhab.binding.rfxcom/src/main/java/org/openhab/binding/rfxcom/internal/messages/RFXComLighting4Message.java#L93)). It would be perfect when: 1. The binding treats the UNDEFINED_0, UNDEFINED_2, UNDEFINED_3 and UNKNOWN commands as ON commands, so the motion and contact sensors can be assigned to Switch and Contact items. (Switch ContactSensor01 { rfxcom="<9287177:Command" }) 2. The binding allows for using the RawMode to put the received command into a String (or Selection?) item. (String ContactSensor01 { rfxcom="<9287177:RawData" }) Thanks for looking into this! ##

There you can see that motion & contacts sensors send a different command with the s1-s24 bits.

These threads might also give some insight

What I saw it that my motion sensor sends a specific on command each time, but the full S1-S24 seems only to be in use by the 4-port relays. And it would only be really correct if an item discovered for the remote button is correctly retransmitted by the binding if requested.

I would really like to implement that sending of a specific command as well, but if we have a common opinion about the rest that should be easy