In this tutorial video we will look at how to read a push button with the SAMD21 microcontroller. We don't use any HAL's as its all bare metal! We don't use START or Harmony or anything.
This tutorial walks you though using switches by looking at the datasheet and you will learn how to use pull up and pull down switches. If you have an Arduino Zero, a SAMD21 Xplained Pro or your own bare metal board, you will be able to use the information in this video!