F. L293D IC circuit [6] The pins of L293D IC are connected to ATmega16 port are Enable1-2 (1-2EN) to PB2, IN1 (1A) to PB1, and IN2 (2A) to PB0 , while OUT1 (1Y) and OUT2 (2Y) pins is connected to DC motor terminals. Fig. 6. shows the L293D IC circuit