B4J Question Character LCD, Matrix Keypad

[Mostez]

Hello;
Are there any ideas about how to interface character LCD(20x4) and matrix keypad(4x4) to Raspberry Pi 2?

Thanks

 

[Erel]

Check this: https://www.b4x.com/android/forum/threads/rpi-piface-control-and-display-cad.62610/#content

 

[Michael1968]

for the matrix keypad(4x4) you can use a decoder IC

 

[Mostez]

Thanks for help