Inverter help (Makes the opposite)

The inverter circuit outputs a voltage that is opposite to it's logic level input. (Sounds confusing but is simple.)
Here are two identical boards but the left one has an inverter. Power travels to the CTs and this moves the motor to it's home position , UP as shows on the right. With the inverter signaling the 'opposite' on the left . The motor moves DOWN to the new home position. Very handy . :)