# V1.1.1 Release Notes
  - fix communication bugs


# V1.1.0 Release Notes
  - Add Set WorkOrigin(G92 X0 Y0 Z0 E0\n)&Set WorkHeight(G92 Z0 E0\n) Button, please note the difference between the two buttons.
  - To increase the communication rate of laser engraving or 3D printing，the serial port baud rate of TouchScreen is set to 1000000.
  - add touch screen calibration function
