Analog Input: In this lesson we will learn about using the analog input function on the Arduino Uno. This will be demonstrated using a potentiometer for the voltage input. Voltage divider calculations will be explained. Finally, an LED will be turned ON or OFF depending on the level of the analog input voltage.
Knowledge Check
Explain the function of a potentiometer.
This microcontroller uses a 10-bit A/D convertor. How many steps (counts) will the 5V be divided by?