Uno R3 Arduino Compatible Controller

  • $17.50
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This chip is the most popular of the Arduino compatible chips, and has the ATmega328P controller.

Ideal for a beginner in Arduino, this chip can be used with jumper wires to prototype or to be used in conjunction with shields to create fully functional projects. 

They are made in China and are clones. 

Operational voltage: 5V
Input voltage: 7-12V (Recommended) 
Digital I/O pins: 14 (5PWM)
Analogue Input pins: 6