Hello,
I am currently doing my end of career project about the performance of Matter over Thread. I have a working scenario which implies a nRF52840 DK working as a light bulb and a nRF5340 as a light switch. I am measuring the consumption of the devices with an Agilent Power Analyzer and the results of the SED mode that the light switch matter example provides are not what I was expecting.
The current consumption in 3v is about 8.3 mA
I would like to know if it is possible to have a lower consumption for this specific case and if I could change or add some values to the Kconfig file in order to get lower values. I attach my current Kconfig file
#
# Copyright (c) 2022 Project CHIP Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
mainmenu "Matter nRF Connect Light Switch Example Application"
config STATE_LEDS
bool "Use LEDs to indicate the device state"
default y
help
Use LEDs to render the current state of the device such as the progress of commissioning of
the device into a network or the factory reset initiation. Note that setting this option to
'n' does not disable the LED indicating the state of the simulated bolt.
# Sample configuration used for Thread networking
if NET_L2_OPENTHREAD
choice OPENTHREAD_NORDIC_LIBRARY_CONFIGURATION
default OPENTHREAD_NORDIC_LIBRARY_MTD
endchoice
choice OPENTHREAD_DEVICE_TYPE
default OPENTHREAD_MTD
endchoice
config CHIP_ENABLE_SLEEPY_END_DEVICE_SUPPORT
bool
default y
endif # NET_L2_OPENTHREAD
if MPSL_FEM
config OPENTHREAD_DEFAULT_TX_POWER
int "Set the default 802.15.4 output power (dBm) for device with FEM"
range -40 20
default -40
help
Use this setting to set the default Thread (802.15.4) output power for device that
uses FEM. This value has a unit in dBm and represents the Tx power at Antenna port of FEM device.
# override FEM GAIN to 20 dB as a default
# see subsys/mpsl/fem/Kconfig
# Leave MPSL_FEM_NRF21540_TX_GAIN_DB unchanged when OPENTHREAD_DEFAULT_TX_POWER=0
# to set the output power to a similar value as for nRF52840DK.
config MPSL_FEM_NRF21540_TX_GAIN_DB
default 20 if OPENTHREAD_DEFAULT_TX_POWER != 0
endif # MPSL_FEM
source "${ZEPHYR_BASE}/../modules/lib/matter/config/nrfconnect/chip-module/Kconfig.features"
source "${ZEPHYR_BASE}/../modules/lib/matter/config/nrfconnect/chip-module/Kconfig.defaults"
source "Kconfig.zephyr"
Finally this is my first post so please if any further information is required do not hesitate to ask me.
I am hopefully waiting for your recomendations.
Thanks in advance,
Pau
