it seems like neither wificfg or network has a function to disconnect from the wifi that I can find. How could I do that?
Is there a way to semi fast connect and disconnect from the wifi?

I want to see how large an object is. But what I tried does not seem to work. It does not print anything.

import sys

lcd.print(sys.getsizeof('this'), 0, 50, 0x000099)

@slow-moose ok, I found a way to use esp-now.
When using ESPNow in the browser version of UIFlow, it imports: from libs.m5_espnow import M5ESPNOW which does not work. It says that the module does not exist.
But when using the downloaded version of UIFlow, it imports instead import espnow and import wifiCfg, which does work...

I am using UIFlow to try to get two-way communication Between three m5Stack core 2. ESPNow would have done so, but i get error saying that the ESPNow module is not valid. What other alternatives are there?