good job
Cricut Expressions 2 to ESP32 GRBL Control
Build in 'Everything Else' published by MattR, Nov 18, 2018.
A log of my "brain surgery" on a Cricut Expressions 2 to change the control board to something open so that I could cut what I wanted. The ESP32 GRBL board I used has bluetooth and WIFI built-in and was very easy to get working just the way I wanted.