38 heart beat led dot matrix use pcb arduino pro shield

arduino pro shield  is small shield. i always called it halfduino...  because the size only 5x5 cm...

i meet the mini dot8x8 at store.so cute and buy them
code : arduinoer.blogspot.com

ref :sparkfun   arduino pro smd  ori desi9n :

mod  :

m#d#f#c#t##n  :