Arduino Uno

The Arduino Uno is the most popular of the Arduino boards available and the easiest to get started with.

Capabilities Summary

• USB Type B connector provides data and power in
• DC Barrel Connector provides power in
• 14 Digital I/O Pins
  • Pulse Width Modulation on pins 3, 5, 6, 9, 10, and 11
  • Serial Communication on pins 0 and 1
  • Serial Peripheral Interface (SPI) communication on pins 10, 11, 12, and 13
• 6 Analog Input Pins
  • Two Wire Interface (TWI) support on pins A4 and A5
• Can be powered by a 9V battery
• "Power pins" can power the board, external devices, and shields

Power Requirements

• From 7 to 12 volts

Arduino Uno Resources

• Arduino Uno Schematics (PDF)

Deeper Knowledge on Arduino Uno

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Broader Topics Related to Arduino Uno

Arduino

The open-source electronics platform for interactive projects and prototypes