How to use an External Reset Button with Arduino :: Viewer Question #6

This video tutorial addresses a viewer's question on setting up an external reset button for Arduino. It covers the components needed, the simple circuit setup, and the reasons for using an external reset button. The tutorial also explains how to test the circuit using a basic Arduino sketch, highlighting the ease of implementation without requiring additional code.

What components are necessary to set up an external reset button for an Arduino?

• A momentary push button, two jumper wires, an Arduino board, and a breadboard

• A slide switch, four jumper wires, an Arduino board, and a diode

• A toggle switch, three jumper wires, an Arduino board, and a resistor

• A rotary switch, one jumper wire, an Arduino board, and a capacitor

What happens to the reset pin when the external button is pressed?

• It receives alternating voltage, triggering a reset

• It receives high voltage, triggering a reset

• It receives low voltage, triggering a reset

• It receives no voltage, triggering a reset

Why might you need an external reset button if the Arduino already has one?

• To enable wireless communication with the Arduino

• To increase the power supply to the Arduino

• To access the reset function when the built-in button is obstructed

• To allow for remote control of the Arduino

What is one reason an external reset button is useful when using shields?

• Shields often block access to the built-in reset button

• Shields are incompatible with the built-in reset button

• Shields require additional power that the built-in button cannot provide

• Shields need a different type of reset signal

What does the Millis function return in the Arduino sketch?

• The number of hours since the Arduino was powered on

• The number of milliseconds since the Arduino was powered on

• The number of microseconds since the Arduino was powered on

• The number of seconds since the Arduino was powered on

How does the Arduino board respond when the reset button is pressed?

• It resets the microcontroller

• It powers off completely

• It enters a sleep mode

• It increases the clock speed

What is the purpose of the serial monitor in the Arduino sketch?

• To upload new sketches to the Arduino

• To adjust the voltage levels

• To control the Arduino remotely

• To display the time since the last reset