- Motors
- Solenoids
- linear actuators that operate along the same principles as motors.
- Relays
- a relay uses an electromagnet to open or close a switch. They make really fun clicking noises and are often used to control high voltage/high current circuits from a smaller, safer one
- Transistors
- solid state switches used to amplify signals and power
- Diodes
- polarized components that make sure electricity only flows in one direction. useful in AC circuits, or in DC circuits when using an inductive load like a motor
Microcontrollers – some notes on using microcontrollers