The power supply can be any DC battery, power pack, voltage generator, or any device that provides electrical power. *Avoid using high voltages and currents as this can damage the components and be dangerous to work with.
- The DC motor can be any size or type of electrical motor that uses DC current. Three wires are needed. Insulated wires work best as they prevent wires from crossing and the battery from short circuiting. A breadboard, electrical tape or solder to make solid connections in the circuit. A tutorial for using breadboards can be found below. The potentiometer can be any type that allows manual control of its resistance. The total resistance value of the potentiometer should be fairly high; etc. , a 1kΩ potentiometer will work good for a 9V battery. But due to the nature of potentiometers, the motor may not fully stop once it is at its max resistance because current is still flowing. This is where incorporating some kind of switch will allow the motor to be easily stopped when not needed.
The power supply can be any DC battery, power pack, voltage generator, or any device that provides electrical power. *Avoid using high voltages and currents as this can damage the components and be dangerous to work with.
- The DC motor can be any size or type of electrical motor that uses DC current. Three or more wires are needed. Insulated wires work best as they prevent wires from crossing and the battery from short circuiting. A breadboard, electrical tape or solder to make solid connections in the circuit. A tutorial for using breadboards can be found below. The resistors can be any value but getting the exact speed needed from the motor requires testing with a certain range of resistors. The values of the resistors add up linearly so it is easy to calculate how to increase or decrease the motors speed by simply adding the values together. For example, two 1kΩ resistors wired together will act the same as a 2kΩ resistor.
