Here is my Arduino LED tetris project,
I am using a at mega 2560 and a MAX 7219
led driver chip to drive an 8×8 LED matrix
that I soldered together.
At this point I have the check ground and
walls function working, check and landing
on existing blocks in the walls, move, rotate,
random bricks, and also a function to check if
a rotation is valid, if it hits the wall the
brick is moved across, if it hits an existing
brick it denies rotation.
next to get line breaks and end game happening.
Latest version of cade available here: https://open-source-project.com/projects/arduino-led-tetris/tetris-source-code/
Open Source Project 
Can you share the code and schematic? 😀
Hi sorry about the late reply,
If you are still interested i have found the code for this project but not the schematic, if you would like i can email you the code.