Why does the Arduino Uno have five analog pins if you can only use one at a time? (Since it only has one ADC.) - Quora
![Tutorial 09: Reading Analog Pins and Converting the Input to a Voltage - Programming Electronics Academy Tutorial 09: Reading Analog Pins and Converting the Input to a Voltage - Programming Electronics Academy](https://i0.wp.com/www.programmingelectronics.com/wp-content/uploads/2014/01/SwitchCaseBoard-1-1024x888.jpg)
Tutorial 09: Reading Analog Pins and Converting the Input to a Voltage - Programming Electronics Academy
![SOLVED] analog input with voltage divided AREF not giving expected result - General Electronics - Arduino Forum SOLVED] analog input with voltage divided AREF not giving expected result - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/d/2/5/d25f3989c9977e7cc18bd0d49976f0ef89198197.jpeg)
SOLVED] analog input with voltage divided AREF not giving expected result - General Electronics - Arduino Forum
![attiny - adc arduino using reference voltage to read stable/constant lithium battery voltage - Arduino Stack Exchange attiny - adc arduino using reference voltage to read stable/constant lithium battery voltage - Arduino Stack Exchange](https://i.stack.imgur.com/bu89s.png)