Analog input

An analog input pin can read a voltage level that ranges from the supply voltage of your board 3.3 v (3.3V) down to 0 v (GND). The value returned to your program from reading the pin is not the actual voltage value but a binary digital number that represents the input signal level.

Pins on edge of board


There are several experiments to let you test out the concepts you learn in the analog input sections. You’ll need a few things to in order to perform some of the experiments.


  "name": "Analog to digital",
  "description": "Learn about converting an analog signal into digital numbers.",
}, {
  "name": "Read analog",
  "description": "Read various voltages on a pin.",