Reset button
Rest Button
AREF
AREF
Ground Pin
Ground Pin
Digital Input/Output
Digital Input/Output
PWM
PWM
USB Connection
USB Connection
TX/RX
TX/RX
ATmega328p
ATmega328p
Power LED Indicator
Power LED Indicator
Voltage Regulator
Voltage Regulator
DC Power Barrel Jack
DC Power Barrel Jack
3.3V Pin
3.3V Pin
5V Pin
5V Pin
Ground Pins
Ground Pins
Analog Pins
Analog Pins