Can't talk to atom Mini with rshell
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 I had rshell working for a while, but now it is failing. I filed https://github.com/dhylands/rshell/issues/138, but I wonder if it is because of the fancy UISHELL ascii logo? This is on the Atom Mini, so it's a bit tough to figure out! I'm running v1.6.2-lite on it, and REPL says: MicroPython 400ff3bbf-dirty on 2020-08-06; M5Stack with ESP32