12 Bit Shift register out

using this library you can control shift registers

The 74HC595 is a “8-bit serial-in, serial or parallel-out shift register with output latches; 3-state.” In other words, you can use it to control 8 outputs at a time while only taking up a few pins on your microcontroller. Normal use 3 pins, or 5 pin with Enable and Clear. (With the assistance of Cesars)