The market plenty of 4 x 4 x 4 led cube was made. I have made 3 x 3 x 3 led cube we also differ. Led cube in each layer is made up of 3 × 3 cut... Electronics Projects, 3x3x3 LED Cube with PIC16F628 microcontroller circuit "led projects, microchip projects, microcontroller projects, pic16f628 projects, " Date 2019/08/04