PPK 2 average current measurement ~75 mA on ble_app_pwr_profiling

RE: PPK 2 average current measurement ~75 mA on ble_app_pwr_profiling

Usha — Mon, 18 Nov 2024 12:55:40 GMT

Title: PPK2 Suddenly Not Detected as USB Port

Hello,
My PPK2 was working fine, but now it’s not showing up as a USB port on my system. I’ve tried multiple USB cables, different ports, and another computer, but it still doesn’t work. generally Red LED On the device power Up but now, no led indication happening and also the device port not coming.

RE: PPK 2 average current measurement ~75 mA on ble_app_pwr_profiling

DimitraN — Tue, 14 May 2024 07:12:38 GMT

I did the same connections with another DK and the consumption is closer to the expected. Turns out that probably there is something wrong with the specific DK.

RE: PPK 2 average current measurement ~75 mA on ble_app_pwr_profiling

DimitraN — Tue, 09 Apr 2024 09:34:56 GMT

Yes sure!

First, SB9 is cut and SB12 is soldered.
I connect a jumper in P22 to connect USB, and program the DK. Using the hex file of the ble_app_pwr_profiling and nRF Connect Programmer, I write the code in the device. (The coin cell battery is not inserted).

I disconnect the jumper, and connect the PPK2.

Vout and Vin of PPK to P22 and GND to External Supply - .

I turn both devices on, and here is a screenshot from nRF Connect Power Profiler App:

and after I press button 1 for advertising:

If I don't use the USB and connect the coin cell battery, the setup is:

and the result in power profiler:

the LED on the DK doesn't turn on, so the device is not powered on.

Please help me if you have any suggestion, because I have no ideas left for what I might be doing wrong, or what has gone wrong in total..

Regards,

Dimitra

RE: PPK 2 average current measurement ~75 mA on ble_app_pwr_profiling

SwRa — Tue, 09 Apr 2024 09:12:45 GMT

HI Dimitra,

Connecting the device as shown in the user guide should work just fine.

[quote user=""]as shown in the PPK 2 User Guide.[/quote]

75mA in indeed way too high.. Could you maybe show a picture of your setup.?

Regards,

Swathy