Philips LTA001 bulb; dimmer and colortemperature: no reaction on bulb

Add-ons Bindings
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1

The bulb show no response when fiddeling with the controls in paperui.

Items:

Dimmer testZBhue_colortemperature <slider> { channel="zigbee:device:01381602:00178801067b5c2d:00178801067B5C2D_11_colortemperature"}
Dimmer testZBhue_dimmer <slider> { channel="zigbee:device:01381602:00178801067b5c2d:00178801067B5C2D_11_dimmer"}

The bulb works when excluded from openhab and included on my Hue bridge.
This is one of the models with bluetooth.

Log file (openhab-philips_lta001.log) is here: https://filebin.net/4kchbsy2g799p3c2

2

All I can say from the log is after the initial joining and interview stage, the device doesn’t respond.

3

Thanks,

Yes, it is displayed as offline in paperui now.

Strange, my other bulbs, not this model of Philips (and Ikea) are working just fine.

Any suggestion how to troubleshoot this?

4

Not really. Without knowing why it’s not working, I can only guess. The best troubleshooting tool is a sniffer, but you probably don’t have that. There are two reasonable options - the device is out of range, of the mesh network, or the device somehow left the network.

5

No, but I think I need one. Right now I am fumbling around in the dark.
I have six buildings I want to cover (I have a farm). Without good troubleshooting tools a project like this would be more like Don Quixote fighting windmills.

Suggestions on good sniffers are most welcome :slight_smile:

6

I’d suggest to use an Ember stick. In theory you can use TI sticks, but I’ve not personally got it to work. The following are instructions and software required.

Instructions

Software

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7

Excellent, thanks!

I already have a Bitronvideo BV 2010/10 so if getting one more, maybe it could double as a backup stick?

Backup is another topic I need to look into.

8

That’s another quite complex discussion with ZigBee. It is possible with the Ember sticks though, but only the Ember provides the functions to be able to back up the coordinator state.

9

Again, thank you.
I was just reading a thread here where you mention ember and the console netbackup command.
I will look into that.

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10

I got the new stick for the sniffer.
And after the initial “WTF am I looking at” :smiley: I found this:

PhilipsLTA001Screenshot_20200519_095251
PhilipsLTA001Screenshot_20200519_0952512342Ă—1516 436 KB

The bulb just decides to leave after 10-15 seconds.
The exchange coordinator <-> bulb looks normal between association and leave.

More investigation is required. Including moving the sniffer-stick to a Rpi for remote sniffing.

11

You’ve filtered the log - I’m assuming there is more traffic between these Join/Leave commands?

What version of the binding are you using? How old is this device?

12

Yes, filtering to get a overview.
Binding is the newest stable from yesterday 2.5.5-1.
Bulb is new, bought around christmas.
It has the newest firmware (updated on Hue hub).
Found I had one more LTA001 on the Hue hub, and it behaves the same on zigbe-binding.

I can pm you a package-dump if you want to take a look into the traffic.

13

Yes please.

I tried searching for this on Amazon but it doesn’t come up with anything - what exactly is that bulb? I might get one for testing. I’ve got around a dozen different bulbs here though - many ZB3.0 certified and they all join fine.

One last question - what firmware does your Ember stick have?

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14

The bulb is one of the newer models with bluetooth.
It is a “White ambiance” E27. This one looks similar:
https://www.amazon.co.uk/Philips-Ambiance-Edison-Bluetooth-Assistant/dp/B07SR3DTPG/ref=pd_bxgy_2/257-5638300-4109167?_encoding=UTF8&pd_rd_i=B07SR3DTPG&pd_rd_r=51b2090f-a244-4272-a8b7-8722c204a940&pd_rd_w=nto18&pd_rd_wg=kM1cp&pf_rd_p=106f838b-b7d1-46e9-83e0-f70facc857bf&pf_rd_r=2PMSSKJE9A2ZBFPE690F&psc=1&refRID=2PMSSKJE9A2ZBFPE690F
Luckily I still have the package, it has the zigbee certifed
logo and text

Firmware on my Bitronvideo 2010/10 is 5.8.0.0

15

I’m trying to work out if these all use ZigBee - they only talk about Bluetooth. Eg is this one also “the same” - it’s a single and only £14. Neither the one you linked or this one mention ZigBee though, so I’m just a bit wary :wink: In the past I would always assume a Hue bulb used ZigBee/ZLL, but I’m not sure if that’s the case now?

That’s very old, but it should still include the ZB3.0 join changes.

16

hehe, I really see no point in bluetooth on product like this. I have only tested it.
But I can use bluetooth to upgrade the firmware in the bulb without a Hue-hub.
Zigbee is the only reason I have them :slight_smile:
I guess salespeople are not into the more geeky side of home-automation.

It is a difference between bulbs marked “White” and “White Ambience”.
I guess the same single-packaged bulb I have is this one: https://www.amazon.co.uk/Philips-Ambiance-Single-Bluetooth-Assistant/dp/B07SS37Y3J/ref=pd_bxgy_2/257-5638300-4109167?_encoding=UTF8&pd_rd_i=B07SS37Y3J&pd_rd_r=dbcc931d-0954-4f97-a46c-ec0c191a4975&pd_rd_w=C5km2&pd_rd_wg=zgW7k&pf_rd_p=106f838b-b7d1-46e9-83e0-f70facc857bf&pf_rd_r=79NT2A7NWGDEFVGDJWPY&psc=1&refRID=79NT2A7NWGDEFVGDJWPY

hm, Is there a way to upgrade it?

17

I guess it gives the “direct from the phone” option…

If that’s all it is, then hopefully it’s the same firmware. I’ll buy one for testing as it’s not so expensive.

I think I know what the issue is - the bulb asks for a new TCLK after joining. This is normal - I’ve configured the coordinator to send the current TCLK rather than generate a new one. This works for most devices, but I’m thinking the Hue doesn’t like that! The problem with generating a new one for each device is there’s a limit to the key table size, so this will use memory and ultimately limit the network size which is why I’ve so far avoided it.

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18

Sorry - forgot to answer.

Yes, it can be upgraded. The problem is I’d need to generate some firmware and I don’t really want to get into the firmware production game for lots of different devices. Silabs used to create it and distribute default version but they stopped this a year or so back.

19

That would make sense. The more costly parts is the LEDs.

Is this a limit in the stick?
If all goes well I would end up with hundred or so devices…

I understand the implications.

So there is hope to find a copy somewhere.
I ended up with the Bitronvideos because I could not find any alternatives with the ember chip that looked more compatible with openhab and zigbee v3

20

There are two limits - firmware and hardware - both in the stick. Firstly there’s possibly a limit in the firmware (although it may be large - silabs don’t specify a maximum limit) and secondly the hard limit is the amount of memory available.

I’ve not looked at the impact of increasing the key table size - what happens is it will reduce the packet buffer size, but I’ll look at doing some quick tests to characterise this.

Yes, I can probably find some from a reasonably recent version. I think Silabs provided code up to around version 6.4 (we’re now at 6.7 I think). I’ll see if I can find something.

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