Power Profiler for Zigbee

[Jorcis]

Hi,

Is there any similar to Online Power Profiler for Zigbee? How much my nRF52840 application should consume when using zboss stack? What is the minimum expected consumption for a Zigbee nRF52840 app?

I have implemented an application as peripheral BLE, using Zephyr. It consumes an average of 100 uA, so good !!!.

I have migrated this application to Zigbee (not multiprotocol at the moment), using NCS instead; functionality is OK, initialization of the hardware components is OK, but after enabling the Zigbee stack ( zigbee_enable(); ) the consumption steps up to 10 mA, which is 100 more times than the consumption with the BLE app.

Note: I do call the function zb_sleep_now(); when sig equals ZB_COMMON_SIGNAL_CAN_SLEEP in my zboss_signal_handler, but nothing changes.

Thanks,

Jordi.

[Simonr]

Hi

Glad you were able to reduce the current consumption.

Enabling the UART shouldn't require much current by itself, and transmitting (over TXD) will only consume current during the transmissions. What I thinks is happening, is that when you start RX data, the SoC will draw quite a bit of current since it needs to have clocks, regulators and EasyDMA channels open to handle the potential incoming data on the RXD. Using a duty cycle to start and stop RX is recommended in order to reduce current consumption here. Typically this can for instance be controlled by a GPIO input, where the peer set a pin high whenever it has data to send, and this pin will start/stop the RX on the nRF.

Best regards,

Simon