I have an application where I need to control the rotation of a DC motor (with feedback from Pot) over the network.
I banged my head over why it is not working properly for many days.
When I give the command to move forward from the ethernet it moves, but when I change the direction it stops moving.
I came to the understanding that the L293D motor shield uses Pin 11 and 12 and thus SPI cannot be used properly.
Has anyone found a workaround for this. I do no need pin 11 as it is connected to Motor channel 1 which I don't use. so probably my problem is only with Pin 12, which is used by the shift registers in the motor shield and are used in every case.
Should I try cutting the connection of pin 12 and connect it to pin 2 and alter the library. I have worked with enough PCBs that I am comfortable doing this.
Is there a better work around?