I have attached a schematic using push buttons instead of limit switches.
Dc motor limit switch circuit.
The motor should then rotate until it hits the other limit switch and then wait for the button to be pressed again to rotate in the opposite direction.
A very cool and easy dc motor speed controller circuit could be build using a just a single mosfet a resistor and a pot as shown below.
Imagine you have two circuits each carrying the same current one is an ac circuit and the other is a dc circuit.
The interlocks are specially important because if both relays are on it would be a short circuit.
When you switch off power to an ac circuit a voltage spark or arc is created.
Since diode cr1 will not conduct with a negative potential across it the motor will stop.
Any help in amending the code to include the limit switches would be greatly appreciated as i am a bit out of my depth.
When the control switch is held in the right position the motor runs until the right limit switch opens.
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The circuit uses 2 relays 2 limit switches and a dc motor.