High current consumption in the Template Matter sample

[Tom McGuinness]

I have followed the guide Adding clusters to Matter application to add two TemperatureMeasurement clusters to the Template sample. 

I have flashed this onto an nRF52840-DK and hooked up a PPKII to the External Supply. I have switched SW6 to nRF ONLY to take the peripherals out of the equation.

The power consumption is a whopping 500µA even with CONFIG_SERIAL=n

In this post, Power consumption of Matter template example - Nordic Q&A - Nordic DevZone - Nordic DevZone, the user converts to from a Minimal Thread Device to a Sleepy End Device and has a tiny power consumption.

I have tried everything I could find to make mine sleepy, but nothing has worked so far. 

The CHIP_ENABLE_ICD_SUPPORT is set to y, but that doesn't seem to have done anything.

Can you please provide me some guidance on making this work??

[Tom McGuinness]

I'm also seeing spikes every 15 seconds, despite the fact nothing is happening.

The config for ICD is 

CONFIG_CHIP_ICD_IDLE_MODE_DURATION=300
CONFIG_CHIP_ICD_ACTIVE_MODE_DURATION=300
CONFIG_CHIP_ICD_SLOW_POLL_INTERVAL=300000
CONFIG_CHIP_ICD_FAST_POLLING_INTERVAL=500

I'd expect to see the spikes at 30 second intervals, matching the SLOW_POLL_INTERVAL