This 2 DC motor board use L293D quadruple high-currect half-H drivers.

 This board provide bidirectional driver currents of up to 1A at voltages from 4.5V to 9V .  

   1.  Use Raspberry Pi  GPIO 17,18,27,22  for two Motor

       GPIO 17,18  for MA1  GPIO 27,22 for MB1

   2, GPIO 17,18,27,22,23,24,25,4 with status LED easy too know the GPIO high/low

   3. GPIO 23,24,25,4,7,8,9,10,11 have GPIO pin for software PWM (Servo Motor) or sensors

4.   2 x i2c device input port    

       J1  GND,5V,SDA,SCL    5V Port with Logic Level converter protect

          J30 GND, 3V3,SDA,SCL   for plug-in other sensors

   5. Red LED for Power Status for Motor (V+ input)