To my understanding the enable pins ( 1&9) must be high (5V) to operate the corresponding side of the IC. However without anything plugged into the enable pin/s I can still operate the L293D (with or without 5v). I have the Pin 8 and 16 provided with Arduino 5V. Any ideas as I am just concerned if this is how it should be operating. Seems like they are no longer serving any function.
Thank You, Geant