![]() The motor 1 is controlled by input pins 1,2 and the motor 2 is controlled by input pins 3,4. Since we will be using both motors in most situations, both pins are kept high by default by connecting to the +5V supply. ![]() Depending on your motor's specifications, you can connect this pin to anywhere between 4.5V and 36V, but I've connected it to +12V here.Įnable pins (Enable 1,2 and Enable 3,4) are used to enable Motor 1 and Motor 2 input pins, respectively. The other pin is Vs(Vcc2), which provides voltage for the motors to operate. The other power pin for this IC is the Vss(Vcc1) power pin, which provides the voltage for the IC to operate. The Vss(Vcc1) power pin must be wired to +5V. As previously mentioned, this IC is capable of simultaneously driving two motors in either direction the circuit to accomplish this is shown below.Īll of the Ground pins should be connected to the ground. ![]() The IC operates on the Half H-Bridge principle we won't go into too much detail about what that means for now, just know that a H bridge is a setup that can operate motors both clockwise and anticlockwise. It's very simple to use the L293D motor driver IC.
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June 2023
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