Arduino nano 33 ble cost a lot of energy when powering on

[haoliu0027]

When I just power the arduino nano 33 ble and it runs under the mode Board: "Arduino Mbed os nano board -> Arduino nano 33 BLE" with empty loop code, it cost a lot of energy at the begining. It seems like that MBED initialize something, anyone know how to optimize this part of energy cost?

[hpssjellis]

Have you seen these shots of the portenta and nicla vision. If your only getting a 3mA power surge your doing great.

#619 (comment)

Makes me wonder if I have connected the nordic ppk2 properly. I will have to try my Nano33BleSense now.

[hpssjellis]

@haoliu0027 I tried the Nan33BleSense with the Nordic PPK2 and 5V to VIN and got this from startup with a blank sketch, but I had not enabled power-output like your screen shot.

But when I load a blink with serial monitor I get a much different reading, more inline with my other MCU's

If after I start the ppk2 I enable power output I then get a clean restart and get this graph, which is showing much more power usage than your graph. For my graph the Nano33BleSense power LED is on.