Thanks.. yesterday , I tested your source code after modified to max7219 led drivers for tetris using arduino. At first, with out 4 keys(switches), there’s no problem to tetris operation…… today I’ll add 4 keys using 0. 2. 4, 6 of arduino ports…… then I want to know 4 keys usually pull up(high state) and when presses to low state….if you have circuit diagram about your project and as possible, I want to it.
Open Source Project 
I want to source code of LED tetris (using arduino and max7219)
I want to source code of LED tetris (using arduino and max7219)
I’ll use this code for high school students of game developing….
ASAP return please…..
Hi Jefflee, Sure I can give you the source code what is your email and I will send it too you.
Many thanks….
My E-mail is ” cascaf@nate.com ”
from Jefflee
Thanks.. yesterday , I tested your source code after modified to max7219 led drivers for tetris using arduino. At first, with out 4 keys(switches), there’s no problem to tetris operation…… today I’ll add 4 keys using 0. 2. 4, 6 of arduino ports…… then I want to know 4 keys usually pull up(high state) and when presses to low state….if you have circuit diagram about your project and as possible, I want to it.