Template for Arduino Uno R3 Shield. Include an official pinout so you will always know Arduino names, the alternative roles of pins, which one is SDA, or SCL, etc. On PCB you can find the 3D model of the Arduino Uno R3 itself along with the board outline on the silkscreen.
#Arduino #Uno #Shield #Template #project-template
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reneca2004
copilot
Vinis used for an external power source,3$V3$is a $3$.3V supply,$5$Vis a $5$V supply, and multipleGNDpins are for ground connections.