As seen in the picture above, you’ll sacrifice 2 analog pins, but if you happen to need IO and have an extra Arduino lying around, this could really help. [Rod] also notes that this method could ...

There are five input pins to the chip which lets you connect one analog pin to any one of 32 analog pins. Of course, in addition to the five control lines, you need some handshaking lines ...

Read more: Battery Brands Ranked From Worst To Best The Arduino Uno Rev3 is the ... A0 (originally used as an analog input) doubles as a digital-to-analog converter (DAC) pin that acts as an ...