L293D Dual H-Bridge Motor Driver Board - 500mA: High-Performance Precision Control for Robotics and Automation

New L293D Breakout Board to interface with any microcontroller ,computer ,Reverse polarity protection , easy to connect screw terminals

Pin1=INPUT-2
Pin2=INPUT-3
Pin3=INPUT-1
Pin4=INPUT-4
Pin5=ENABLE A
Pin6=ENABLE B
Pin7=NOT CONNECTED
Pin8=NOT CONNECTED
Pin9= Ground
Pin10=Vcc +5Volt

There are two pins in-front of LM7805 is for supply 8-12 V DC (Mind Polarity :- left pin is positive mark) this is for Vss(+5V) Logic Supply Voltage

Screw terminal marked M1 and M2 are for motors ,and third screw terminal is for Vs ( Supply Voltage ) where you can apply upto 36V DC as per data-sheet , but we recommend not to exceed more then 12V ,again mind the polarity , however there is a Diode to protect reverse polarity at Vs only.
 for more details go through datasheet of L293D