Computer not recognize arduino uno when connected to motor drive sheild

Arduino uno not power up while placing L293D motor drive shield.

  1. Arduino UNO working properly without connection of L293D motor drive shield.
  2. <AFMotor.h> Library already upload in IDE program.
  3. While connection of external single source power supply (9V or 5.5V) to L293D motor driver shield with jumper Auridon not power On.
  4. Checked 2 power source option with removing of jumper on L293D motor driver shield however Arduino not power on.

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Can you provide a drawing of your complete circuit - we cannot guess this.

BTW small 9V batteries cannot produce much current - motors need lots of current, its a common mistake to underestimate power requirements for motors.

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