Working with an LED and a Push Button - Arduino Project Hub
Arduino: Pushbutton
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Amazon.com: Gikfun 12x12x7.3 mm Tact Tactile Push Button Momentary SMD PCB Switch with Cap for Arduino (Pack of 25pcs) AE1027 : Industrial & Scientific
Use a Push Button Switch with Arduino | Starting Electronics
The Simplest Way to Wire a Button to Arduino (with Internal Pull-Up) | Arduino Button Tutorial - YouTube
Connecting a Push Button to an Arduino Uno with Two Wires