Can I use L293E instead of L293D for dc motor?

Projects General Guidance
1

I couldn't get L293D (16 pins) motor driver in my school, instead got L293E (20 pins). The only difference is L293E has 4 sensor pins which would not be needed. Can I just ground those 4 pins and use L293E as L293D for a similar wire connection as shown in the image?
image

Thank you>

2

Yes, but you need to provide external flyback diodes for each motor.
The L293D has them internally, the L293E does not.

See the bottom right motor on the second page of the datasheet.

3

And you just not power the motors from the 5v pin on the arduino

4

Tha design is done by an ignorant maniac.

  1. Never use any Arduino as power supply.
  2. Never run motor current through a bread board if You want it to last more than "5 minutes".
  3. Protective diodes are missing. Risk for damaging the Arduino.
  4. Missing power supply of the Arduino.
5

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