Topic

digital inputs

3 videos. Ranked by independent recommendations, not by views.

1. 

   1 Electronics 201: Pull-Up and Pull-Down Resistors

   humanHardDrive 4 people · 4 months · since Jul 2014

   Recommended as an eleven minute explainer on pull-up and pull-down resistors, though one viewer felt the usual framing still leaves the concept hard to grasp.

2. 

   2 Floating Pins, Pull-Up Resistors and Arduino

   Programming Electronics Academy 3 people · 3 months · since Jun 2016

   Recommended for understanding why an unconnected input reads erratically and how a pull-up or pull-down resistor settles it, especially when first using Arduino.

3. 

   3 How To - Expand Digital Inputs with the 74HC165 + Test Code

   Kevin Darrah 3 people · 3 months · since Jul 2016

   Considered a clear explanation of adding more digital inputs to an Arduino with a 74HC165 shift register, complete with test code.