Connect the Arduino to the Casio calculator LCD ?

Other Hardware Displays
1

Hi,
someone tried to connect Arduino to the LCD of the Casio science calculator?

Thanks!

2

Hello Guy,
I'm currently working on an add-in for Casio Graph 35+;75 and 85 (fx-9860G) allowing taking control of the arduino with the calculator and taking control of the calculator with the arduino. I'll use the serial port on the calculator .
If anyone can explain to me how the Tx and Rx pins works it's gonna be useful.
Thanks, mininao

You can contact me in french :).