how about sum arduinos to the scratch

Using CodeSkool you can connect Arduino to Scratch https://codeskool.cc/getting-started-with-arduino-uno-r4-wifi-with-codeskool-scratch-programming/

That’s a cool idea!
Scratch itself doesn’t directly support Arduino, but there are versions of Scratch that do — like Pishi.ai Scratch, which has an Arduino extension for connecting boards such as Uno, Nano, and Mega using USB or Bluetooth.
It works with the StandardFirmata firmware, so you can control LEDs, sensors, and motors with blocks instead of typing code.

It’s a fun way to bring your Scratch projects to life with real hardware!