Matter Telink Air Quality Sensor Example Application#

You can use this example as a reference for creating your own application.

Telink B91 EVK

Supported devices#

The example supports building and running on the following devices:

Board/SoC	Build target	Zephyr Board Info
B91 TLSR9518ADK80D	`tlsr9518adk80d`, `tlsr9518adk80d-mars`, `tlsr9518adk80d-usb`	TLSR9518ADK80D
B92 TLSR9528A	`tlsr9528a`, `tlsr9528a_retention`	TLSR9528A
B95 TLSR9258A	`tlsr9258a`	TLSR9258A
W91 TLSR9118BDK40D	`tlsr9118bdk40d`	TLSR9118BDK40D

Build and flash#

Run the Docker container:

$ docker run -it --rm -v $PWD:/host -w /host ghcr.io/project-chip/chip-build-telink:$(wget -q -O - https://raw.githubusercontent.com/project-chip/connectedhomeip/master/.github/workflows/examples-telink.yaml 2> /dev/null | grep chip-build-telink | awk -F: '{print $NF}')

You can find the compatible Docker image version in the file:

$ .github/workflows/examples-telink.yaml

Activate the build environment:

$ source ./scripts/activate.sh -p all,telink

Build the example (replace <build_target> with your board name, see Supported devices):
```
$ west build -b <build_target>
```
Also use key -DFLASH_SIZE, if your board has memory size different from 2 MB, for example, -DFLASH_SIZE=1m or -DFLASH_SIZE=4m:
```
$ west build -b <build_target> -- -DFLASH_SIZE=4m
```
You can find the target built file called zephyr.bin under the build/zephyr directory.
Flash binary:
```
$ west flash --erase
```

Usage#

UART#

To get output from device, connect UART to following pins:

Name	Pin
RX	PB3 (pin 17 of J34 connector)
TX	PB2 (pin 16 of J34 connector)
GND	GND

Baud rate: 115200 bits/s

Buttons#

The following buttons are available on tlsr9518adk80d board:

Name	Function	Description
Button 1	Factory reset	Perform factory reset to forget currently commissioned Thread network and return to a decommissioned state (to activate, push the button 3 times)
Button 2	`AirQuality` control	Manually triggers the `AirQuality` state
Button 3	Thread start	Commission thread with static credentials and enables the Thread on device
Button 4	Open commission window	The button is opening commissioning window to perform commissioning over BLE

LEDs#

Indicate current state of Thread network#

Red LED indicates current state of Thread network. It is able to be in following states:

State	Description
Blinks with short pulses	Device is not commissioned to Thread, Thread is disabled
Blinks with frequent pulses	Device is commissioned, Thread enabled. Device trying to JOIN thread network
Blinks with wide pulses	Device commissioned and joined to thread network as CHILD

Indicate identify of device#

Green LED used to identify the device. The LED starts blinking when the Identify command of the Identify cluster is received. The command’s argument can be used to specify the the effect. It is able to be in following effects:

Effect	Description
Blinks (200 ms on/200 ms off)	Blink (`Clusters::Identify::EffectIdentifierEnum::kBlink`)
Breathe (during 1000 ms)	Breathe (`Clusters::Identify::EffectIdentifierEnum::kBreathe`)
Blinks (50 ms on/950 ms off)	Okay (`Clusters::Identify::EffectIdentifierEnum::kOkay`)
Blinks (1000 ms on/1000 ms off)	Channel Change ( `Clusters::Identify::EffectIdentifierEnum::kChannelChange`)
Blinks (950 ms on/50 ms off)	Finish ( `Clusters::Identify::EffectIdentifierEnum::kFinishEffect`)
LED off	Stop (`Clusters::Identify::EffectIdentifierEnum::kStopEffect`)

CHIP tool commands#

Build chip-tool cli

Pair with device

${CHIP_TOOL_DIR}/chip-tool pairing ble-thread ${NODE_ID} hex:${DATASET} ${PIN_CODE} ${DISCRIMINATOR}

Example:

./chip-tool pairing ble-thread 1234 hex:0e080000000000010000000300000f35060004001fffe0020811111111222222220708fd61f77bd3df233e051000112233445566778899aabbccddeeff030e4f70656e54687265616444656d6f010212340410445f2b5ca6f2a93a55ce570a70efeecb0c0402a0fff8 20202021 3840

OTA with Linux OTA Provider#

OTA feature enabled by default only for ota-requestor-app example. To enable OTA feature for another Telink example:

set CONFIG_CHIP_OTA_REQUESTOR=y in corresponding “prj.conf” configuration file.

After build application with enabled OTA feature, use next binary files:

merged.bin - main binary to flash PCB (Use at least 2MB PCB).
matter.ota - binary for OTA Provider

All binaries has the same SW version. To test OTA “matter.ota” should have higher SW version than base SW. Set CONFIG_CHIP_DEVICE_SOFTWARE_VERSION=2 in corresponding “prj.conf” conﬁguration file.

Usage of OTA:

Build the Linux OTA Provider

./scripts/examples/gn_build_example.sh examples/ota-provider-app/linux out/ota-provider-app chip_config_network_layer_ble=false

Run the Linux OTA Provider with OTA image.
```
./chip-ota-provider-app -f matter.ota
```
Provision the Linux OTA Provider using chip-tool
```
./chip-tool pairing onnetwork ${OTA_PROVIDER_NODE_ID} 20202021
```
here:
- ${OTA_PROVIDER_NODE_ID} is the node id of Linux OTA Provider

Configure the ACL of the ota-provider-app to allow access

./chip-tool accesscontrol write acl '[{"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null}, {"fabricIndex": 1, "privilege": 3, "authMode": 2, "subjects": null, "targets": null}]' ${OTA_PROVIDER_NODE_ID} 0

here:

${OTA_PROVIDER_NODE_ID} is the node id of Linux OTA Provider

Use the chip-tool to announce the ota-provider-app to start the OTA process
```
./chip-tool otasoftwareupdaterequestor announce-otaprovider ${OTA_PROVIDER_NODE_ID} 0 0 0 ${DEVICE_NODE_ID} 0
```
here:
- ${OTA_PROVIDER_NODE_ID} is the node id of Linux OTA Provider
- ${DEVICE_NODE_ID} is the node id of paired device

Once the transfer is complete, OTA requestor sends ApplyUpdateRequest command to OTA provider for applying the image. Device will restart on successful application of OTA image.

Matter Telink Air Quality Sensor Example Application

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