This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino ... In case of any doubt refer this table. Push Switch (S1) ...

Connect Arduino pin8 to DIN on 8×8 LED Matrix Connect Arduino pin9 to CS of 8×8 LED Matrix Connect Arduino pin10 to CLK of 8×8 LED Matrix Connect an external 5VDC (1A) to VCC of 8×8 LED Matrix Connect ...