The Complete Beginners Guide to Arduino - 2021 - Buttons and Pull Up/Down Resistors

The video tutorial explains common mistakes beginners make when wiring buttons to input pins without using pull-up or pull-down resistors. It highlights the importance of these resistors in preventing floating states and electrical noise, ensuring reliable high and low signals. The tutorial also covers the concept of circuit states, including high, low, and floating, and demonstrates how resistors help maintain stable readings. Additionally, it touches on the concept of button debounce and provides practical advice for setting up button circuits correctly.

What are typical resistor values used for pull-down resistors in button circuits?

How can you modify a circuit to read a low signal when a button is pressed?

What is the effect of not accounting for button debounce in code?