STM32WB55RG Thread SED unexpected power consumption

[Alessio Galliazzo]

Hi guys,

I'm quite new on the STM32 environment, I bought a couple of STM32WB55RG nucleo board, I programmed the M0 with the Thread_MTD firmware and the M4 with the example for Thread SED CoAP multicast.

All software package on the SMT32CueIDE are up to date.

I removed the J2 jumper and inserted a uA meter with logging capabilities. And I see that the device will never go under 600uA.

I was expecting something about 1 magnitude lower (so 10-100uA), what am I missing?

Best

[Alessio Galliazzo · Accepted solution]

Please ignore my post: I missed the connection between VDD and the ST-Link... Removing all jumpers current drop down to 6uA avarage... exactly what I was expecting...