Arduino Uno Diagram. It comprises 14 digit i o pins. The arduino uno pinout guide includes information you need about the different pins of the arduino uno microcontroller and their uses.
This arduino uno pinout diagram reference will hopefully help you get the most out of this board. The arduino uno is arguably the most popular arduino board currently available. When atmega328 chip is used in place of arduino uno or vice versa the image below shows the pin mapping between the two.
These simple arduino projects are explained well and you can find the complete guide to diy these projects with the help of circuit diagrams source codes and videos.
The customer must not. Power supply analog and digital pins and icsp. The arduino software includes a wire library to simplify use of the i2c bus. There is a usb type b port on the board which is used to program and power the microcontroller ic also there is a separate power input port to give external voltage via regulator 7805.
