Day 3: Button Input — Making the Arduino Listen 11 April 2026·1568 words·8 mins Arduino Arduino Beginner Kids Button Input Digitalread If-Else Day 3 of Learn Coding with Arduino — connect a push button, read it with digitalRead, and use your first if/else to turn on an LED only when pressed.
Day 7: The Easier Button — INPUT_PULLUP 11 April 2026·1411 words·7 mins Arduino Arduino Beginner Kids Button Input Pullup Toggle Day 7 of Learn Coding with Arduino — simplify your button circuit using the Arduino’s built-in pull-up. One resistor less, and learn how to toggle an LED with each press.