CHIP_TOOL.md

Using the Mattertool (chip-tool)

The following commands show how to start a new Thread network from the local OTBR, commission an EFR32 Matter End Device (Matter Accessory Device), and then send the on/off commands with the mattertool automated script. The mattertool script provides an interface into various chip-tool and otbr commands used to create and interact with a Matter network

Basic Mattertool Commands

Command	Usage
mattertool startThread	Starts the thread network on the OTBR
mattertool bleThread	Starts commissioning of a Matter Accessory Device using the chip-tool
mattertool on	Sends the on command to the Matter Accessory Device using the chip-tool
mattertool off	Sends the off command to the Matter Accessory Device using the chip-tool

You can also use the full chip-tool command set (still using mattertool)

$ mattertool levelcontrol read current-level 106 1

Advanced Information on the Matter Hub

Image tree

• home
  • ubuntu (you are here)
    • connectedhomeip (git repo: https://github.com/project-chip/connectedhomeip.git)
      • .
    • ot-br-posix (git repo: https://github.com/openthread/ot-br-posix.git)
      • .
    • scripts (in-house scripts)
      • configurations.sh
      • matterTool.sh
      • setupOTBR.sh

Open Thread Border Router (OTBR)

For information on what commits to use for the OTBR and RCP, consult the Matter Repositories and Commit Hashes page

The pre-installed OTBR is configured for the infrastructure interface eth0.

Bash script to modify, reinstall or update the OTBR:

$ otbrsetup

This bash script centralizes and simplifies the local OTBR installation.

Available commands:

Command	Description
-h, --help	Prints help options
-if, --interface <eth0|wlan0>	Select infrastructure interface. Default eth0
-i, --install	Bootstrap, set up and install the OTBR. Usually for a new installation
-s, --setup	Runs the OTBR setup only, use this to change the configured infrastructure interface (use in combination with -if wlan0 for Wi-Fi)
-u, --update	Update the OTBR installation after the repo is updated

Usage:

Change infrastructure to wlan0: $ otbrsetup -if wlan0 -s
Rerun full install for eth0 interface: $ otbrsetup -i

Upgrading the OpenThread Border Router (OTBR)

Change OTBR commit reference/version

$ cd /home/ubuntu/ot-br-posix

$ git fetch

$ git checkout <SHA>

$ otbrsetup -u

Upgrading the Matter - Chip-tool

For more information on the commit hashes used for this demo please consult the following page: Matter Repositories and Commit Hashes

To change the chip-tool commit reference/version, follow these steps:

$ cd /home/ubuntu/connectedhomeip

$ git fetch

$ git checkout <SHA>

$ mattertool buildCT

The mattertool script centralizes and simplifies the use of chip-tool and starting a clean thread network.

Available commands:

Command	Description
help	Prints help options
startThread	Start a new thread network and store the operational thread dataset for the commissioning purpose (bleThread)
bleThread	For Matter Bluetooth LE thread commissioning with an EFR32 device
bleWifi	For Matter Bluetooth LE Wi-FI commissioning with an EFR32 device
buildCT	Clean build of the chip-tool
cleanVars	Erase every Set variable used in the script. They will be set back to default or randomized value
off	Turn off the Light on the already-commissioned EFR32 device
on	Turn on the Light on the already-commissioned EFR32 device
toggle	Toggle the Light on the already-commissioned EFR32 device
parsePayload	Parse the given Payload (QrCode string)
rebuildCT	Rebuild the chip-tool
vars	Print the Variables in use by the script

Some options/arguments can be added to the command to update the values of the variables used by the script.

Available commands:

Command	Description
-h, --help	Prints help options
-n, --nodeId DIGIT	Specify the Nodeid you are trying to reach
-e, --endpoint DIGIT	Specify an endpoint for the desired cluster
-d, --dataset HEX_STRING	Thread Operation Dataset to be provisioned
-s, --ssid STRING	Wi-Fi AP SSID that the end devices need to connect to
-p, --password STRING	Wi-Fi AP password

These configurations are held until overwritten, cleared with cleanVars or when Raspberry Pi reboots.

Active variables used by mattertool:

Variable	Value
MATTER_ROOT	/home/ubuntu/connectedhomeip
CHIPTOOL_PATH	/home/ubuntu/connectedhomeip/out/standalone/chip-tool
NODE_ID	31354
THREAD_DATA_SET	<the_value_you_get>
PINCODE	20202021
DISCRIMINATOR	3840
SSID	<your_SSID>
lastNodeId	0

You can preset them with export X=Y before running the script or use some available options to change some of them.

In most cases, MATTER_ROOT, CHIPTOOL_PATH, PINCODE, and DISCRIMINATOR should remain at the default set value.

For commissioning commands (bleThread, bleWifi) NODE_ID will be randomized if it is the same as the last pairing

When the startThread command is used, THREAD_DATA_SET will be assigned with the right operation dataset for the created Thread Network.

Scripts Alias

The commands presented above are linked to scripts. You can edit .bashrc and rename the following alias to your liking.

$ alias mattertool=‘source $HOME/scripts/matterTool.sh’

$ alias otbrsetup=‘source $HOME/scripts/setupOTBR.sh'

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Table of Contents | Thread Demo | Wi-Fi Demo