Zigbee power consumption

[romainJ]

Hello,

I am using an nRF52833 dev kit and the Zigbee light_switch example from nRF Connect SDK.

I was trying to implement the sleep mode so I wanted to estimate the power consumption.

I followed this documentation to measure it with an ampere-meter.

I get an estimated current at 6 mA which is way too much. When I try to run a simple example (with Zigbee disabled) from the nRF Connect SDK I am able to measure 400µA.

Am I doing something wrong ? I need to reduce the power consumption from Zigbee but I have no clue.

Any help would be appreciated !

Best regards,

Romain

[Marte Myrvold]

Hi Romain,

Are you enabling sleepy end device? Is 6mA the average current consumption or peaks? During start up and when the device is joining a network the current consumption will be high, but it should go down after this. You will of course also see an increase in current consumption when there is radio activity. The typical current for 802.15.4 radio activity can be found in the specification: Current consumption > Radio transmitting/receiving. Since you are seeing 6 mA it sounds like the radio is transmitting and/or receiving, and that the device is not in sleepy end device mode.

Best regards,

Marte

[romainJ]

Dear Marte,

I must admit that my problem is now fixed.

I don't know why but after reseting the board, I am now able to measure 1.6 µA.

Kind regards,

Romain

[Marte Myrvold]

Hi Romain,

That is good to hear! I will close the ticket.

Best regards,

Marte