81 LED Matrix X-Y Controlled with two Clock Pulses

81 LED Matrix X-Y controlled with two Clock pulses (different frequency) using 4017 IC

Parts list:

 

4017(2pcs)

LED (81 pcs)

Resistor 330R (9pcs)

Resistor 10K (9pcs)

Transistor 2N3904 (9pcs)

Circuit:

Watch this Video for more Details: