47+ Arduino Uno Pins Explained
Gallery. Arduino uno has a couple of other pins as explained below The pins on the arduino can be configured as either inputs or outputs.
Serial Communication Between Nodemcu And Arduino from engineeringprojectshub.com
The arduino uno's 16mhz crystal oscillator. The 2 first pins side to usb connector are sda/scl according to documentation. Arduino nano applications also explained in detail.
The arduino uno board has over 20 pins that you can use for many different applications.
It's important to note that Arduino uno and nano have 20 digital i/o pins. The arduino uno's 16mhz crystal oscillator. And the documentation says a4 and a5 pins can also be sda/scl.
