![In a circuit with a switch and a pull-down resistor, why does the high impedance of the input not discourage current from flowing into pin? - Arduino Stack Exchange In a circuit with a switch and a pull-down resistor, why does the high impedance of the input not discourage current from flowing into pin? - Arduino Stack Exchange](https://i.stack.imgur.com/Pg6bq.png)
In a circuit with a switch and a pull-down resistor, why does the high impedance of the input not discourage current from flowing into pin? - Arduino Stack Exchange
Electronics and Embedded Systems, Microcontrollers, Arduino: Arduino Digital Inputs, Pull Up and Pull Down
![Arduino Uno Example Sketch: Digital Input Pullup - Arduino - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key Arduino Uno Example Sketch: Digital Input Pullup - Arduino - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key](https://global.discourse-cdn.com/digikey/original/2X/b/b8838cedc54de2371617c137c152f5678242a77a.png)