Arduino Analog I/O Multiplexer. 15 Comments . by: Al Williams. June 9, 2018. Title: ... There are five input pins to the chip which lets you connect one analog pin to any one of 32 analog pins.

As for the pins, the UNO features 14 digital pins for both input and output use, six analog pins for input only, three ground (GND) pins, a VIN pin for connecting to an external power supply, two ...

If, however, they don't seem to be a great fit for your needs, there are several other small Arduino boards you can use instead, including the Micro (18 by 48 mm), MKR Zero (25 x 61.5 mm) and MKR ...

Adding USB functionality to your Arduino projects used to be a pain, but thankfully, the V-USB project came along and gave your ATMEGA328 the ability to control the USB lines directly and mimic sim… ...