product description:
The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital inputoutput pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serial converter.
Technical Specifications
Microcontroller: ATmega328
Operating Voltage: V5
Input Voltage (recommended): 7-12V
Input Voltage (limits): 6-20V
Digital IO Pins: 4 (of which 6 provide PWM output)
Analog Input Pins: 6
DC Current per IO Pin: 40mA
DC Current for 3.3V Pin: 50mA
Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM: 2 KB
EEPROM: 1 KB
Clock Speed: 16 MHz
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Package Including
1 x Compatible Arduino UNO R3 Development Board
1 x USB OTG Cable
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