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Saturday, November 17, 2018

Arduino Uno (Rev.3) Development Board

Arduino Uno is a development board based on the ATmega328P microcontroller. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, 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.

You can tinker with your UNO without worrying too much about doing something wrong, in worst case scenario you can replace the chip for a few dollars and start over again.

"Uno" means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The 
Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards.

Tech Specs:

Microcontroller
Operating Voltage
5V
Input Voltage (recommended)
7-12V
Input Voltage (limit)
6-20V
Digital I/O Pins
14 (of which 6 provide PWM output)
PWM Digital I/O Pins
6
Analog Input Pins
6
DC Current per I/O Pin
20 mA
DC Current for 3.3V Pin
50 mA
Flash Memory
32 KB (ATmega328P) of which 0.5 KB used by bootloader
SRAM
2 KB (ATmega328P)
EEPROM
1 KB (ATmega328P)
Clock Speed
16 MHz
LED_BUILTIN
13
Length
68.6 mm
Width
53.4 mm
Weight
25 g

Schematics:

Schematics.pdf       

For more details please visit the Arduino website.

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