The pinout diagram of an electronic device is one of the most useful reference documents and one we will consult most frequently when building a project. The case of Arduino is no exception, especially considering the large number of pins and board models available.
As the complexity of our circuits increases and we start using more complex functions, such as communication between devices or interrupts, it becomes more convenient to have these diagrams at hand, to quickly look up the data for each pin on the different existing boards.
I leave you with the pinout diagrams for the main Arduino boards, which will be reference documents we will frequently use in the rest of the blog posts.
Arduino Uno Pinout
Arduino Nano Pinout
Arduino Mini Pro Pinout
Arduino Mega Pinout
Source: The diagrams in this post are translations based on the work of pighixxx (page offline since 2018) All diagrams are preserved in this repo https://github.com/luisllamasbinaburo/pighixxx-uploads-archive
