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I would like to connect 3 L293D Motor controllers to an Arduino Uno with the hopes of powering 6 different dc motors. I was just wondering how to wire this being that one motor controller (which allows for 2 dc motors to be controlled) already takes up most of the pins on the arduino, thanks.

Below is the wiring diagram for how I am hooking up 1 L293D motor controllers to the arduino.

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How about a PWM expander like the TLC59711. The link calls it an LED driver but it's just a breakout board for the SPI-PWM expander chip.

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