28+ Arduino Uno Pin Diagram Explanation Pdf Background. Arduino uno r3, pin diagram, specification and applications. The arduino uno board has over 20 pins that you can use for many different applications.
The arduino uno pinout guide includes information you need about the different pins of the arduino uno microcontroller and their uses: There are pins with secondary functions as listed below. They are all titled something like the here's an example bitmap version, but i recommend that you download, print and laminate the pdf version for your board.
Added sda and scl pins that are near to the aref pin and two other new pins placed near to the reset pin, the ioref that allow the shields to adapt to the voltage provided from the board.
Datasheets, manuals, pin outs, diagrams and other helpful schematics for your projects, includes esp826, es32, atmel mcu, ti boards, max, nxp, pic, etc. This article explains how arduino works from an electronic design perspective. The customer must not rely on the absence or characteristics of any features or instructions marked reserved or undefined. arduino reserves these for future definition and shall have no responsibility. Page 8 the pinmode command sets the led pin to be an output.