CHIP Ameba All Clusters Example#

A prototype application that demonstrates device commissioning and cluster control.

CHIP Ameba All Clusters Example

Supported Device#

The CHIP demo application is supported on Ameba RTL8722DM Board.

Building the Example Application#

Pull docker image:

  $ docker pull ghcr.io/project-chip/chip-build-ameba:94

Run docker container:

  $ docker run -it -v ${CHIP_DIR}:/root/chip ghcr.io/project-chip/chip-build-ameba:94

Setup build environment:
```
  $ source ./scripts/bootstrap.sh
```
To build the demo application:
```
  $ ./scripts/build/build_examples.py --target ameba-amebad-all-clusters build
```
The output image files are stored in out/ameba-amebad-all-clusters/asdk/image folder.

The bootloader image files are stored in out/ameba-amebad-all-clusters/asdk/bootloader folder.
After building the application, Ameba Image Tool is used to flash it to Ameba board.

Connect your device via USB and open Ameba Image Tool.
Select correct serial port and set baudrate as 115200.
Browse and add the corresponding image files in the Flash Download list to the correct locations
Click Download button.

Commissioning#

There are two commissioning modes supported by Ameba platform:

BLE mode#

Build and Flash
The all-clusters example will run automatically after booting the Ameba board.
Test with Chip-Tool

IP mode#

Build and Flash
The all-clusters example will run automatically after booting the Ameba board.
Connect to AP using ATW0, ATW1, ATWC commands
Test with Chip-Tool

Cluster Control#

After successful commissioning, use the OnOff cluster command to control the OnOff attribute. This allows you to toggle a parameter implemented by the device to be On or Off.

Via Chip-Tool

  $ ./chip-tool onoff on <nodeID> 1
  $ ./chip-tool onoff off <nodeID> 1

Running RPC Console#

Connect a USB-TTL adapter as shown below

For AmebaD

    Ameba         USB-TTL
    A19           TX
    A18           RX
    GND           GND

For AmebaZ2

    Ameba         USB-TTL
    A13           TX
    A14           RX
    GND           GND

Build the chip-rpc console
As part of building the example with RPCs enabled the chip_rpc python interactive console is installed into your venv. The python wheel files are also created in the output folder: out/debug/chip_rpc_console_wheels. To install the wheel files without rebuilding:
```
    $ pip3 install out/debug/chip_rpc_console_wheels/*.whl
```

Launch the chip-rpc console after resetting Ameba board

    $ chip-console --device /dev/tty<port connected to USB-TTL adapter> -b 115200

Get and Set lighting directly using the RPC console

    python
    rpcs.chip.rpc.Lighting.Get()
    rpcs.chip.rpc.Lighting.Set(on=True, level=128, color=protos.chip.rpc.LightingColor(hue=5, saturation=5))

Running Matter Shell#

Matter Shell is enabled whenever RPC is disabled.
RPC console and Matter Shell cannot be enabled at the same time as they use the same UART port.
Connect Ameba to the USB-TTL adapter as shown in the RPC section.
Open the USB-TTL serial port and type help to view the available commands
To know what are the available subcommands are there, enter switch command in the shell

Binding and Controlling a Device#

This example shows how to bind a Switch Device to a Controllee Device and control it through the Matter Shell. One binding client (Switch Device) and one binding server (Controllee) is required.

Commission the switch (nodeID 1) and controllee device (nodeID 2) using chip-tool.

      $ ./chip-tool pairing ble-wifi 1 <SSID> <PASSWORD> 20202021 3840
      $ ./chip-tool pairing ble-wifi 2 <SSID> <PASSWORD> 20202021 3840

After successful commissioning, configure the ACL in the controllee device to allow access from switch device and chip-tool.

      $ ./chip-tool accesscontrol write acl '[{"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null },{"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [1], "targets": null }]' 2 0

Bind the endpoint 1 OnOff cluster of the controllee device to the switch device.

      $ ./chip-tool binding write binding '[{"fabricIndex": 1, "node":2, "endpoint":1, "cluster":6}]' 1 1

Send OnOff command to the device through the switch device’s Matter Shell

switch onoff on

switch onoff off

You may also bind more than one cluster to the switch device. Below command binds the Identify, OnOff, LevelControl, ColorControl and Thermostat clusters to the switch device.

      $ ./chip-tool binding write binding '[{"fabricIndex": 1, "node":2, "endpoint":1, "cluster":3}, {"fabricIndex": 1, "node":2, "endpoint":1, "cluster":6}, {"fabricIndex": 1, "node":2, "endpoint":1, "cluster":8}, {"fabricIndex": 1, "node":2, "endpoint":1, "cluster":768}, {"fabricIndex": 1, "node":2, "endpoint":1, "cluster":513}]' 1 1

After binding the clusters, you may send these cluster commands to the controllee device through the switch device’s Matter Shell. Follow the format shown in the description of the commands.

switch onoff on

switch levelcontrol movetolevel 100 0 0 0

switch colorcontrol movetohue 100 0 0 0 0

switch thermostat SPRL 0 0

You may also request to read cluster attributes from Matter Shell

switch <cluster> read <attribute>

CHIP Ameba All Clusters Example

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