Generic switch
LG Smart Button (1 Button)
CSAThreadBluetooth
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Generic Switch
What this kind of Matter device usually can do
Typical for a Matter Generic Switch, not a lab test of this exact product.
Usually includes
- Device descriptorDevice descriptor is the Matter “Descriptor” capability (0x001D). Typical for this kind of Matter device (Generic Switch), not a test of this exact product.
- Identify (blink to find)Identify (blink to find) is the Matter “Identify” capability (0x0003). Typical for this kind of Matter device (Generic Switch), not a test of this exact product.
- SwitchTypical for this kind of Matter device (Generic Switch): “Switch” (0x003B). What this type usually can do, not a test of this exact product.
Technical cluster IDs3
- Descriptor
- 0x001D Typical for this kind of Matter device (Generic Switch): “Descriptor” (0x001D). What this type usually can do, not a test of this exact product.
- Identify
- 0x0003 Typical for this kind of Matter device (Generic Switch): “Identify” (0x0003). What this type usually can do, not a test of this exact product.
- Switch
- 0x003B Typical for this kind of Matter device (Generic Switch): “Switch” (0x003B). What this type usually can do, not a test of this exact product.
CHIP typical for this Matter type · not this exact product
LG Smart Button (1 Button) is CSA certified. Certificate CSA26226MAT52078-24. Buttons and rockers that send on/off events. Matter spec 1.2. Part number TMCB1B4W. It uses Matter over Thread, so you need a Thread border router already on your network. You can add it as Matter in Apple Home, Google Home, Alexa, and Home Assistant.
Needs a Thread border router already on the network. CSA does not name a hub. Pairing is unlikely without one. Typical Thread radios for each app, not a lab test of this exact product.
- Apple HomeNeeds a Thread border routerWorks as Matter
Use
- HomePod mini
- HomePod (2nd generation)
- Apple TV 4K with Thread
Don’t count on
- First-gen HomePod
- Wi-Fi-only Apple TV 4K
- Google HomeNeeds a Thread border routerWorks as Matter
Use
- Nest Hub (2nd gen)
- Nest Hub Max
- Nest Wifi Pro
- Nest Wifi
- Google TV Streamer
Don’t count on
- Nest Hub (1st gen)
- Nest Mini
- Amazon AlexaNeeds a Thread border routerWorks as Matter
Use
- Echo Hub
- Echo (4th generation)
- a Thread-capable eero
Don’t count on
- Most Echo Dots
- Echo Spot / Show / Studio
- Home AssistantNeeds a Thread border routerWorks as Matter
Use
- Home Assistant Yellow
- Connect ZBT
- another OpenThread border router
Don’t count on
- Home Assistant with no Thread radio
Specifications
- Network
- Thread · Bluetooth
- Matter spec
- 1.2
- Brand
- LG Electronics
- Part number
- TMCB1B4W
- Firmware
- 1.3.00
CSA record
- Certificate
- CSA26226MAT52078-24
- Certified
Is this CSA certified?
CSA recorded a certified Matter software version (certificate CSA26226MAT52078-24). On the list is not the same as certified. See CSA certified.
Does it need a Thread border router?
CSA recorded Thread for this listing. You need a Thread border router already on your network. CSA does not name a required hub. Typical examples from platform docs (not a test of this SKU) include HomePod mini, Nest Hub (2nd gen), Echo (4th generation), and Home Assistant Yellow / Connect ZBT. See the Thread vs Wi-Fi guide and Amazon listings for typical hubs.
Related guides
LG Electronics Matter devices. Type hub: Generic switches.
What are VID and PID?
VID is the manufacturer number CSA assigned. PID is the Matter model id for this hardware. Together they identify this listing on CSA’s public Matter list.
Which apps can I pair it in?
You can commission it as Matter in Apple Home, Google Home, Alexa, and Home Assistant. That follows CSA certification, not a HomeKit-only or lab result. See commissioning.
