Hello, is it possible to turn the power LED of the IoT like how you do it with the BLE? Thanks.
Hello, is it possible to turn the power LED of the IoT
No it is hard wired to be on like most power LEDs. You can unsolder it or its urgent current limiting resistor if it is a bother to you.
Grumpy_Mike:
You can unsolder it or its urgent limiting resistor if it is a bother to you.
But how urgent is it?
Using that tablet with - among another things - its auto-correct is quite a disability, isn't it? 
A power pilot is something intended to tell you whether the power is on, not anything else - you expect it to be a totally reliable indicator of power or no power, not a status indicator of the microcontroller, so it is not under software control. You may be confusing it with the status LED, marked "L" on many or most Arduinox, including the Nano 233 IOT.
In the case of the Nano 33 IoT, it is actually confirming power on the 3.3 V line.
Using that tablet with - among another things - its auto-correct is quite a disability, isn't it?
It is. 
But not as bad as using it without auto correct is even worse when you are dyslexic.
How it got urgent from current is a bit of a mystery. Add this to the fact that the latest upgrade has also significantly reduced the size of the font so that even with my 3.0 diopter reading glasses some things are missed.
Wow! 3.0 diopter! What I call my "staring" glasses at work for examining people close up are only 2.0 AFAIK! (focus to 50 cm)
Mind you, I use head-mounted magnifiers for real close up electronics.
What I call my "staring" glasses at work
When I first got them about 10 years ago I called them my "Schematic reading glasses" but as you get older your eyes do deteriorate. :o
When I could no longer read the pin numbers on a 25 Way D-type socket I thought it was time I started using glasses. I was 49 at the time and started with 1.25 diopter. For the record I am 68 for the next three months. 