Review Questions 12

Steph has an ongoing project about automated locking systems. She wants to incorporate a display so that she can put prompts such as "LOCK CLOSED”, "LOCK OPENED”. What component can she use?

• Breadboard

• Capacitor

• Optocoupler

• LCD

Carol is just starting to learn about Arduino UNO and its components. As her first project, she wants to light up LEDs in parallel wiring and use a component to resist the flow of electrical charge and prevent the LEDs from exploding. What component can she use?

• Resistor

• Capacitor

• Photoresistor

• Piezo

Carol wants to expand her simple LED project by adding a component that whenever the component is pressed, it will turn on the LEDs. What component can she use?

• Optocoupler

• Push Button

• Potentiometer

• LED

Rhod wants to do an LED project. He will be using an Arduino UNO microcontroller. What component can he use to connect wires and other components together that is solder-less?

• Motherboard

• Diode

• H-bridge

• Breadboard

Miguel works in an IT company. Whenever he has a project, he uses a microcontroller to control sensors and motors. With the components listed below, what is considered as a microcontroller?

• Arduino UNO

• Transistor

• PIR Sensor

• Potentiometer