@ajb2k3 Yeah. I saw the switch up in the middle. Block or Python. I understand that it is, i some way, possible to use clean code. It is great to see what code each graphic symbol creates. I will test it a few days more. I assume there is some way to use the tools on board the M5 but from compiled python code that I upload in the usual way. There is some form of operating system in the M5, I have seen.

Great. I will check it out.
I saw in UIFlow you could use Python in some cases. That gives a degree of freedom I beleive. However, learning this "scratch" (I think it is called) is not wrong. Why not using graphical language? I'm well aware of Labview. That's all graphical language.

edit: Reading some pdf:s. Great. This is what I need!

I got this module in my hand and knows nothing about it. I understand it can be powerful. How should I start?
Which software should I use? This scratch-thing online? Can I use Visual Studio/Code with Arduino module?
Can I use this onlinetool and then doing things in Python?

I have developed apps in Arduino using C.
I have used Python i some development situations. Python is ok for me to use.
I normally working with Atmega processors and using Atmel Studio and pure C.

What do I want to do with this M5?
Connect to M5 via Wifi (what to to with that connection is another question)
Get a LED blink
Read a analogue/digital signal
Later on, controlling a servo.

Would be great with some suggestions.