Exploring Breadboards and LEDs

What is a breadboard used for?

• A breadboard is used for baking bread.

• A breadboard is used for prototyping electronic circuits.

• A breadboard is used for measuring voltage.

• A breadboard is used for storing electronic components.

How do you connect an LED to a breadboard?

• Connect the LED directly to the power supply without a resistor.

• Connect the cathode to a positive voltage and the anode to ground.

• Connect both leads to the same voltage source.

• Connect the anode to a positive voltage and the cathode to ground through a resistor.

What does LED stand for?

• Light Emitting Device

• Light Emitting Display

• Laser Emitting Diode

• Light Emitting Diode

What is the purpose of a resistor in an LED circuit?

• To provide a power source for the circuit.

• To limit current and protect the LED from damage.

• To increase voltage for the LED.

• To change the color of the LED.

How can you tell the positive and negative leads of an LED?

• The longer lead is positive (anode) and the shorter lead is negative (cathode).

• Both leads are the same length.

• The longer lead is negative and the shorter lead is positive.

• The color of the lead indicates polarity.

What programming language is used with MakeCode?

• Ruby

• Python

• C++

• JavaScript

What is the first step in programming an LED to blink?

• Write the code to blink the LED.

• Install the software for programming the LED.

• Set up the hardware connections for the LED.

• Choose the color of the LED.

How do you upload your code to a microcontroller using MakeCode?

• Connect the microcontroller and run the code directly from MakeCode.

• Use a programming language other than MakeCode to upload the code.

• Upload the code via a USB cable without downloading the .hex file.

• Connect the microcontroller, download the .hex file from MakeCode, and drag it to the microcontroller's drive.

What is the function of the 'on start' block in MakeCode?

• The 'on start' block is for creating variables only.

• The 'on start' block runs code at random times during the program.

• The 'on start' block is used to stop the program from running.

• The 'on start' block initializes the program and runs code when the program starts.

How can you change the color of an LED using MakeCode?

• Use the 'set LED color' block in MakeCode to change the LED color.

• Use a resistor to alter the LED color.

• Use the 'change LED brightness' block in MakeCode.

• Connect the LED to a different power source.