The CHIP Tool (chip-tool
) is a Matter controller implementation that allows to commission a Matter device into the network and to communicate with it using Matter messages, which may encode Data Model actions, such as cluster commands.
The tool also provides other utilities specific to Matter, such as parsing of the setup payload or performing discovery actions.
You can find source files of the CHIP Tool in the examples/chip-tool
directory.
Note: The CHIP Tool caches the configuration state in the
/tmp/chip_tool_config.ini
file. Deleting this and other.ini
files in the/tmp
directory can sometimes resolve issues related to stale configuration.
Before you can use the CHIP Tool, you must compile it from source on Linux (amd64/aarch64) or macOS. If you want to run it on Raspberry Pi, it must use a 64-bit OS.
Note: To ensure compatibility, always build the CHIP Tool and the Matter device from the same revision of the
connectedhomeip
repository.
To build and run the CHIP Tool:
Install all required packages for Matter and prepare the source code and the build system. Read the Building Matter guide for instructions.
Open a command prompt in the connectedhomeip
directory.
Run the following command:
./scripts/examples/gn_build_example.sh examples/chip-tool BUILD_PATH
In this command, BUILD_PATH
specifies where the target binaries are to be placed.
To check if the CHIP Tool runs correctly, execute the following command from the BUILD_PATH
directory:
$ ./chip-tool
As a result, the CHIP Tool prints all available commands. These are called clusters in this context, but not all listed commands correspond to the clusters in the Data Model (for example, pairing or discover commands). Each listed command can however become the root of the new more complex command by appending it with sub-commands. Examples of specific commands and their use cases are described in the Supported commands and options section.
The following steps depend on the application clusters that you implemented on the device.
The steps are using the Matter Lighting Application Example with the Bluetooth LE commissioning method support. You can use other Matter examples and still follow this procedure. If you use a different example, the Step 7 may vary depending on the clusters implemented in your application.
Build and program the device with the Matter device firmware by following the Matter Lighting Application Example documentation.
Some examples are configured to advertise automatically on boot. Other examples require physical trigger, for example pushing a button. Follow the documentation of the Matter device example for the chosen platform to learn how Bluetooth LE advertising is enabled for the given example.
To follow the next steps, the IP network must be up and running. For instance, the Thread network can be established using OpenThread Border Router.
You must provide the CHIP Tool with network credentials that will be used in the device commissioning procedure to configure the device with a network interface, such as Thread or Wi-Fi.
The Matter specification does not define the preferred way of how the network credentials are to be obtained by controller. In this guide, we are going to provide steps for obtaining Thread and Wi-Fi network credentials.
Fetch and store the current Active Operational Dataset from the Thread Border Router. This step may vary depending on the Thread Border Router implementation.
If you are using OpenThread Border Router (OTBR), retrieve this information using one of the following commands:
For OTBR running in Docker:
sudo docker exec -it otbr sh -c "sudo ot-ctl dataset active -x" 0e080000000000010000000300001335060004001fffe002084fe76e9a8b5edaf50708fde46f999f0698e20510d47f5027a414ffeebaefa92285cc84fa030f4f70656e5468726561642d653439630102e49c0410b92f8c7fbb4f9f3e08492ee3915fbd2f0c0402a0fff8 Done
For OTBR native installation:
sudo ot-ctl dataset active -x 0e080000000000010000000300001335060004001fffe002084fe76e9a8b5edaf50708fde46f999f0698e20510d47f5027a414ffeebaefa92285cc84fa030f4f70656e5468726561642d653439630102e49c0410b92f8c7fbb4f9f3e08492ee3915fbd2f0c0402a0fff8 Done
For Thread, you might also use a different out-of-band method to fetch the network credentials.
You must get the following Wi-Fi network credentials to commission the Matter device to the Wi-Fi network:
The steps required to determine the SSID and password may vary depending on the setup. For instance, you might need to contact your local Wi-Fi network administrator.
Matter uses the following values:
You can find these values in the logging terminal of the device (for instance UART) when the device boots up. For example:
I: 254 [DL]Device Configuration: I: 257 [DL] Serial Number: TEST_SN I: 260 [DL] Vendor Id: 65521 (0xFFF1) I: 263 [DL] Product Id: 32768 (0x8000) I: 267 [DL] Hardware Version: 1 I: 270 [DL] Setup Pin Code: 20202021 I: 273 [DL] Setup Discriminator: 3840 (0xF00) I: 278 [DL] Manufacturing Date: (not set) I: 281 [DL] Device Type: 65535 (0xFFFF)
In this printout, the discriminator is 3840 (0xF00)
and the setup PIN code is 20202021
.
Before communicating with the Matter device, first it must join an existing IP network.
Matter devices can use different commissioning channels:
In this case, your device can join the existing IP network over Bluetooth LE and then be commissioned into a Matter network.
Different scenarios are available for Thread and Wi-Fi networks, as described in the following subsections.
After connecting the device over Bluetooth LE, the controller prints the following log:
Secure Session to Device Established
This log message means that the PASE (Password-Authenticated Session Establishment) session using SPAKE2+ protocol has been established.
To commission the device to the existing Thread network, use the following command pattern:
$ ./chip-tool pairing ble-thread <node_id> hex:<operational_dataset> <pin_code> <discriminator>
In this command:
To commission the device to the existing Wi-Fi network, use the following command pattern:
$ ./chip-tool pairing ble-wifi <node_id> <ssid> <password> <pin_code> <discriminator>
In this command:
If you prefer the hexadecimal format, use the hex:
prefix. For example:
$ ./chip-tool pairing ble-wifi <node_id> hex:<ssid> hex:<password> <pin_code> <discriminator>
Note: The <node_id> can be provided as a hexadecimal value with the
0x
prefix.
This option is available when the Matter device is already present in an IP network, but it has not been commissioned to a Matter network yet.
To commission the device, you can use either the setup PIN code or the setup PIN code and the discriminator, both of which you obtained in the step 5. Alternatively, you can also use a QR code payload.
To discover devices and try to pair with one of them using the provided setup code, use the following command pattern:
$ ./chip-tool pairing onnetwork <node_id> <pin_code>
The command keeps trying devices until pairing with one of them succeeds or until it runs out of pairing possibilities. In this command:
To discover devices with a long discriminator and try to pair with one of them using the provided setup code, use the following command pattern:
$ ./chip-tool pairing onnetwork-long <node_id> <pin_code> <discriminator>
The command keeps trying devices until pairing with one of them succeeds or until it runs out of pairing possibilities. In this command:
Matter devices log the QR code payload and manual pairing code when they boot.
To discover devices based on the given QR code payload or manual pairing code and try to pair with one of them, use the following command pattern:
$ ./chip-tool pairing code <node_id> <qrcode_payload-or-manual_code>
The command keeps trying devices until pairing with one of them succeeds or until it runs out of pairing possibilities. In this command:
MT:Y.K9042C00KA0648G00
, or a manual pairing code like 749701123365521327694
.In case commissioning needs to be retested, the following command removes the device with the given node ID from the list of commissioned Matter devices:
$ ./chip-tool pairing unpair <node_id>
In this command, <node_id> is the user-defined ID of the node which is going to be forgotten by the CHIP Tool.
Having completed all previous steps, you have the Matter device successfully commissioned to the network. You can now test the device by interacting with Data Model clusters.
In case of the Matter Lighting Application Example we referenced in step 1, the application implements the On/Off and Level Control clusters. This means that you can test it by toggling the bulb (using the onoff
cluster commands) or by manipulating its brightness (using the levelcontrol
cluster commands):
Use the following command pattern to toggle the OnOff attribute state (e.g. visualized by the LED state):
$ ./chip-tool onoff toggle <node_id> <endpoint_id>
In this command:
Use the following command pattern to change the value of the CurrentLevel attribute (e.g. visualized by the LED brightness):
$ ./chip-tool levelcontrol move-to-level <level> <transition_time> <option_mask> <option_override> <node_id> <endpoint_id>
In this command:
0
and 254
, unless a custom range is configured in the cluster.Every Matter device supports the Basic cluster, which maintains the collection of attributes that a controller can obtain from a device. These attributes can include the vendor name, the product name, or the software version.
Use the CHIP Tool's read
command on the basic
cluster to read those values from the device:
$ ./chip-tool basic read vendor-name <node_id> <endpoint_id> $ ./chip-tool basic read product-name <node_id> <endpoint_id> $ ./chip-tool basic read software-version <node_id> <endpoint_id>
In these commands:
You can also use the following command to list all available commands for Basic cluster:
$ ./chip-tool basic
This section contains a general list of various CHIP Tool commands and options, not limited to commissioning procedure and cluster interaction.
The CHIP Tool can run in one of the following modes:
Single-command mode (default) - In this mode, the CHIP Tool will exit with a timeout error if any single command does not complete within a certain timeout period.
The timeout error will look similar to the following one:
[1650992689511] [32397:1415601] CHIP: [TOO] Run command failure: ../../../examples/chip-tool/commands/common/CHIPCommand.cpp:392: CHIP Error 0x00000032: Timeout
Moreover, when using the single-command mode, the CHIP Tool will establish a new CASE session with every command sent.
Interactive mode - In this mode, a command will terminate with an error if it does not complete within the timeout period. However, the CHIP Tool will not be terminated and it will not terminate processes that previous commands have started. Moreover, when using the interactive mode, the CHIP Tool will establish a new CASE session only when there is no session available yet. On the following commands, it will use the existing session.
This timeout can be modified for any command execution by supplying the optional --timeout
parameter, which takes a value in seconds, with the maximum being 65535 seconds.
Example of command:
$ ./chip-tool otasoftwareupdaterequestor subscribe-event state-transition 5 10 0x1234567890 0 --timeout 65535
For commands such as event subscriptions that need to run for an extended period of time, the CHIP Tool can be started in interactive mode first before running the command.
Example of command:
$ ./chip-tool interactive start otasoftwareupdaterequestor subscribe-event state-transition 5 10 ${NODE_ID} 0
To print all clusters supported by the CHIP Tool, run the following command:
$ ./chip-tool
Example of output:
[1647346057.900626][394605:394605] CHIP:TOO: Missing cluster name Usage: ./chip-tool cluster_name command_name [param1 param2 ...] +-------------------------------------------------------------------------------------+ | Clusters: | +-------------------------------------------------------------------------------------+ | * accesscontrol | | * accountlogin | | * administratorcommissioning | | * alarms | | * any | | * appliancecontrol | | * applianceeventsandalert | | * applianceidentification | | * appliancestatistics | | * applicationbasic |
To print the list of commands supported by a specific cluster, use the following command pattern:
$ ./chip-tool <cluster_name>
In this command:
chip-tool
).Example of command:
$ ./chip-tool onoff
Example of output:
[1647417645.182824][404411:404411] CHIP:TOO: Missing command name Usage: ./chip-tool onoff command_name [param1 param2 ...] +-------------------------------------------------------------------------------------+ | Commands: | +-------------------------------------------------------------------------------------+ | * command-by-id | | * off | | * on | | * toggle | | * off-with-effect | | * on-with-recall-global-scene | | * on-with-timed-off | | * read-by-id | | * read | | * write-by-id | | * write | | * subscribe-by-id | | * subscribe | | * read-event-by-id | | * subscribe-event-by-id | +-------------------------------------------------------------------------------------+ [1647417645.183836][404411:404411] CHIP:TOO: Run command failure: ../../examples/chip-tool/commands/common/Commands.cpp:84: Error 0x0000002F
To get the list of attributes for a specific cluster, use the following command pattern:
$ ./chip-tool <cluster_name> read
In this command:
chip-tool
).Example of command:
$ ./chip-tool onoff read
Example of output:
[1647417857.913942][404444:404444] CHIP:TOO: Missing attribute name Usage: ./chip-tool onoff read attribute-name [param1 param2 ...] +-------------------------------------------------------------------------------------+ | Attributes: | +-------------------------------------------------------------------------------------+ | * on-off | | * global-scene-control | | * on-time | | * off-wait-time | | * start-up-on-off | | * server-generated-command-list | | * client-generated-command-list | | * attribute-list | | * feature-map | | * cluster-revision | +-------------------------------------------------------------------------------------+ [1647417857.914110][404444:404444] CHIP:TOO: Run command failure: ../../examples/chip-tool/commands/common/Commands.cpp:120: Error 0x0000002F
To get the list of parameters for a specific command, use the following command pattern:
$ ./chip-tool <cluster_name> <target_command>
In this command:
chip-tool
).Example of command:
$ ./chip-tool onoff on
Example of output:
[1647417976.556313][404456:404456] CHIP:TOO: InitArgs: Wrong arguments number: 0 instead of 2 Usage: ./chip-tool onoff on node-id/group-id endpoint-id-ignored-for-group-commands [--paa-trust-store-path] [--commissioner-name] [--trace_file] [--trace_log] [--ble-adapter] [--timedInteractionTimeoutMs] [--suppressResponse] [1647417976.556362][404456:404456] CHIP:TOO: Run command failure: ../../examples/chip-tool/commands/common/Commands.cpp:135: Error 0x0000002F
This section lists selected options that can be used to configure the input command.
To choose the Bluetooth adapter used by the CHIP Tool, use the following command pattern:
--ble-adapter <id>
In this command:
Example of usage:
$ ./chip-tool pairing ble-thread 1 hex:0e080000000000010000000300001335060004001fffe002084fe76e9a8b5edaf50708fde46f999f0698e20510d47f5027a414ffeebaefa92285cc84fa030f4f70656e5468726561642d653439630102e49c0410b92f8c7fbb4f9f3e08492ee3915fbd2f0c0402a0fff8 20202021 3840 --ble-adapter 0
Message tracing allows capturing CHIP Tool secure messages that can be used for test automation. The tracing uses several types of flags that control where the traces should go.
The following flags are available:
Trace file flag:
--trace_file <filename>
Here, <filename> is the name of the file where the trace data is stored. It can be appended to a command in the following way:
$ ./chip-tool pairing <pairing_options> --trace_file <filename>
Trace log flag:
--trace_log <onoff>
Here, <onoff> is a [0/1]
flag, which when set to 1
prints the trace data with automation logs to the console.
The CHIP Tool allows to run a set of tests, already compiled in the tool, against a paired Matter device.
To get the list of available tests, run the following command:
$ ./chip-tool tests
To execute a particular test against the paired device, use the following command pattern:
$ ./chip-tool tests <test_name>
In this command:
See the Examples section for an example of how to run a test from the test suite.
The CHIP Tool offers a utility for parsing the Matter onboarding setup payload and printing it in a readable form. For example, the payload can be printed on the device console during boot.
To parse the setup code, use the payload
command with the parse-setup-payload
sub-command, as in the following command pattern:
$ ./chip-tool payload parse-setup-payload <payload>
Here, <payload> is the ID of the payload to be parsed.
Examples of commands:
Setup QR code payload:
$ ./chip-tool payload parse-setup-payload MT:6FCJ142C00KA0648G00
Manual pairing code:
$ ./chip-tool payload parse-setup-payload 34970112332
To parse additional data payload, use the following command pattern:
$ ./chip-tool parse-additional-data-payload <payload>
In this command:
The discover
command can be used to resolve node ID and discover available Matter devices.
Use the following command to print the available sub-commands of the discover
command:
$ ./chip-tool discover
To resolve the DNS-SD name corresponding with the given Node ID and update the address of the node in the device controller, use the following command pattern:
$ ./chip-tool discover resolve <node_id> <fabric_id>
In this command:
To discover all Matter commissionables available in the operation area, run the following command:
$ ./chip-tool discover commissionables
To discover all Matter commissioners available in the operation area, run the following command:
$ ./chip-tool discover commissioners
The pairing
command supports different means regarding Matter device commissioning procedure.
Thread and Wi-Fi commissioning use cases are described in the Using the CHIP Tool for Matter device testing section.
To list all pairing
sub-commands, run the following command:
$ ./chip-tool pairing
As mentioned in the Using the CHIP Tool for Matter device testing section, executing the chip-tool
command with a particular cluster name lists all operations supported for this cluster, as in the following command pattern:
$ ./chip-tool <cluster_name>
Example of command:
$ ./chip-tool binding
Example of output:
[1647502596.396184][411686:411686] CHIP:TOO: Missing command name Usage: ./chip-tool binding command_name [param1 param2 ...] +-------------------------------------------------------------------------------------+ | Commands: | +-------------------------------------------------------------------------------------+ | * command-by-id | | * read-by-id | | * read | | * write-by-id | | * write | | * subscribe-by-id | | * subscribe | | * read-event-by-id | | * subscribe-event-by-id | +-------------------------------------------------------------------------------------+ [1647502596.396299][411686:411686] CHIP:TOO: Run command failure: ../../examples/chip-tool/commands/common/Commands.cpp:84: Error 0x0000002F
According to this list, the binding
cluster supports operations such as read or write. Attributes from that cluster can also be subscribed by the controller, which means that the CHIP Tool will receive notifications, for instance when the attribute value is changed or a specific event happens.
This section lists examples of the CHIP Tool commands dedicated to specific use cases.
accesscontrol
clusterThe Access Control List (ACL) concept allows to govern all Data Model interactions (such as read attribute, write attribute, invoke command). For more information about ACL, see Access Control Guide.
To write ACL to the accesscontrol
cluster, use the following command pattern:
$ ./chip-tool accesscontrol write acl <acl_data> <node_id> <endpoint_id>
In this command:
accesscontrol
cluster is implemented.binding
clusterBinding describes a relationship between the device that contains the binding cluster and the end device. The proper ACL must be added to allow the end device to receive commands from the bonded device. After the binding process, the bonded device contains information about connected device, such as IPv6 address and the route to the endpoint in the Matter network.
To add a binding table to the binding
cluster, use the following command pattern:
$ ./chip-tool binding write binding <binding_data> <node_id> <endpoint_id>
In this command:
binding
cluster is implemented.TestClusters
testComplete the following steps to run one test from the test suite:
rm -fr /tmp/chip_*
./out/debug/standalone/chip-all-clusters-app
./out/debug/standalone/chip-tool pairing onnetwork 333221 20202021
./out/debug/standalone/chip-tool tests TestCluster --nodeId 333221
Read the CHIP Test Suits page for more information about how the test suite is structured.
Multi-admin feature allows you to join Matter device to several Matter fabrics and have several different Matter administrators administer it.
Complete the steps mentioned in the following sections.
Commission the Matter device to first fabric following the Using CHIP Tool for Matter device testing section.
Make sure the administrator from the first fabric opens the commissioning window for a new administrator from another fabric.
Open the commissioning window on the paired Matter device by using the following command pattern:
$ ./chip-tool pairing open-commissioning-window <node_id> <option> <window_timeout> <iteration> <discriminator>
In this command:
Note: The <iteration> and <discriminator> values are ignored if the <option> is set to 0.
Example of command:
$ ./chip-tool pairing open-commissioning-window 1 1 300 1000 2365
Write down the manual pairing code or the QR code payload printed in the command output, as it will be required by the second Matter admin to join Matter device to its fabric.
Example of output:
[1663675289.149337][56387:56392] CHIP:DMG: Received Command Response Status for Endpoint=0 Cluster=0x0000_003C Command=0x0000_0000 Status=0x0 [1663675289.149356][56387:56392] CHIP:CTL: Successfully opened pairing window on the device [1663675289.149409][56387:56392] CHIP:CTL: Manual pairing code: [36281602573] [1663675289.149445][56387:56392] CHIP:CTL: SetupQRCode: [MT:4CT91AFN00YHEE7E300]
Complete the following steps:
Open another instance of the CHIP Tool.
In the new instance of the CHIP Tool, commission the Matter device to a new fabric by using the following command pattern:
$ ./chip-tool pairing code <payload> <node_id> --commissioner-name <commissioner_name>
In this command:
Example of command:
$ ./chip-tool pairing code 36281602573 1 --commissioner-name beta
After completing the above steps, the Matter device should be able to receive and answer Matter commands sent in the second fabric. For example, you can use the following command pattern to toggle the OnOff
attribute state on a device supporting OnOff
cluster:
$ ./chip-tool onoff toggle <node_id> <endpoint_id> --commissioner-name <commissioner_name>
In this command:
Example of command:
$ ./chip-tool onoff toggle 1 1 --commissioner-name beta