Tasmota: 6.3.0.17 changes to Home Assistant discovery topic... old topic not being cleared.

Created on 17 Dec 2018 · 5Comments · Source: arendst/Tasmota

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Describe the bug
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6.3.0.17 now appears to use the last 6 characters of the mac address in the MQTT topic when publishing the availability of the device. Previously the main topic for the device was used in creating the MQTT message..

With this change the old retained MQTT message is not removed from the broker. This causes a duplicate devices to be created in home assistant. This new device has a new entity ID which causes issues with any automation etc.

6.3.0.15 message
qos : 0, retain : true, cmd : publish, dup : false, topic : homeassistant/light/PowderRoomLight_1/config, messageId : , length : 315,

6.3.0.17 message
qos : 0, retain : true, cmd : publish, dup : false, topic : homeassistant/light/183562_LI_1/config, messageId : , length : 315,

I can manually clear the old message by publishing an empty retained message on the original hass topic. For 1 or 2 devices this is ok... but I had to create a node-red flow to clear down all of the duplicate devices.

_Also, make sure these boxes are checked [x] before submitting your issue - Thank you!_

[X ] _Searched the problem in issues and in the wiki_
[X ] _Hardware used_ : KS602
[x ] _Development/Compiler/Upload tools used_ :atom:
[ ] _If a pre-compiled release or development binary was used, which one?_ :
[X ] _You have tried latest release or development binaries?_ :
[X ] _Provide the output of command_status 0 :

STATUS 0 OUTPUT HERE - DO NOT DELETE THE MARKERS ABOVE AND BELOW THIS LINE

00:07:54 CMD: status 0
00:07:54 MQT: PowderRoomLight/stat/STATUS = {"Status":{"Module":1,"FriendlyName":["Powder Room Light"],"Topic":"PowderRoomLight","ButtonTopic":"0","Power":0,"PowerOnState":3,"LedState":8,"SaveData":1,"SaveState":1,"SwitchTopic":"0","SwitchMode":[0,0,0,0,0,0,0,0],"ButtonRetain":0,"SwitchRetain":0,"SensorRetain":0,"PowerRetain":1}}
00:07:54 MQT: PowderRoomLight/stat/STATUS1 = {"StatusPRM":{"Baudrate":115200,"GroupTopic":"PowderRoom","OtaUrl":"http://10.0.168.24:88/tasmoadmin/firmwares/firmware.bin","RestartReason":"Software/System restart","Uptime":"0T19:31:55","StartupUTC":"2018-12-16T09:35:59","Sleep":1,"BootCount":22,"SaveCount":228,"SaveAddress":"F5000"}}
00:07:54 MQT: PowderRoomLight/stat/STATUS2 = {"StatusFWR":{"Version":"6.3.0.17(sonoff)","BuildDateTime":"2018-12-15T22:08:45","Boot":4,"Core":"2_3_0","SDK":"1.5.3(aec24ac9)"}}
00:07:54 MQT: PowderRoomLight/stat/STATUS3 = {"StatusLOG":{"SerialLog":2,"WebLog":2,"SysLog":0,"LogHost":"","LogPort":514,"SSId":["XXXX-A","XXXX-B"],"TelePeriod":120,"SetOption":["400A8029","558180C0","00000220"]}}
00:07:54 MQT: PowderRoomLight/stat/STATUS4 = {"StatusMEM":{"ProgramSize":480,"Free":520,"Heap":18,"ProgramFlashSize":1024,"FlashSize":1024,"FlashChipId":"1440C8","FlashMode":3,"Features":["00000809","0FC0A794","24018001","2102179C","000013D1"]}}
00:07:54 MQT: PowderRoomLight/stat/STATUS5 = {"StatusNET":{"Hostname":"PowderRoomLight-5474","IPAddress":"10.0.168.68","Gateway":"10.0.168.1","Subnetmask":"255.255.255.0","DNSServer":"10.0.168.1","Mac":"B4:E6:2D:18:35:62","Webserver":2,"WifiConfig":5}}
00:07:54 MQT: PowderRoomLight/stat/STATUS6 = {"StatusMQT":{"MqttHost":"10.0.168.24","MqttPort":1883,"MqttClientMask":"DVES_%06X","MqttClient":"DVES_183562","MqttUser":"DVES_USER","MqttType":1,"MAX_PACKET_SIZE":1000,"KEEPALIVE":15}}
00:07:54 MQT: PowderRoomLight/stat/STATUS7 = {"StatusTIM":{"UTC":"Mon Dec 17 05:07:54 2018","Local":"Mon Dec 17 00:07:54 2018","StartDST":"Sun Mar 11 02:00:00 2018","EndDST":"Sun Nov 04 03:00:00 2018","Timezone":99,"Sunrise":"07:46","Sunset":"16:42"}}

To Reproduce
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Expected behavior
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remove the old MQTT message from when changing the discovery topic structure.

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Additional context
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(Please, remember to close the issue when the problem has been addressed)

troubleshooting

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