A000073
A000073 Datasheet
Code A000073
| Part | Datasheet |
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A000073 |
A000073 (pdf) |
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| Code A000073 The board everybody gets started with, based on the ATmega328 SMD . • The Arduino Uno SMD R3 is a microcontroller board based on the ATmega328. It has 14 digital input/output pins of which 6 can be used as PWM outputs , 6 analog inputs, a 16 MHz crystal oscillator, 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 adapter or battery to get started. The Uno differs from all preceding boards in that it does not use the FTDI serial driver chip. Additional features coming with the R3 version are: ATmega16U2 instead 8U2 as converter. pinout added SDA and SCL pins for TWI communication placed near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board and the second one is a not connected pin, that is reserved for future purposes. stronger RESET circuit. "Uno" means "One" in Italian and is named to mark the upcoming release of Arduino The Uno and version will be the reference versions of Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform. TECH SPECS Microcontroller ATmega328P Operating Voltage Input Voltage recommended Input Voltage limit Digital I/O Pins 14 of which 6 provide PWM output PWM Digital I/O Pins Analog Input Pins DC Current per I/O Pin 20 mA DC Current for 3.3V Pin 50 mA Flash Memory 32 KB ATmega328P of which KB used by bootloader SRAM 2 KB ATmega328P EEPROM 1 KB ATmega328P Clock Speed LED_BUILTIN Length Width Weight 16 MHz 13 mm 25 g OSH Schematics Arduino Uno is hardware! You can build your own board using the follwing files: EAGLE FILES IN .ZIP SCHEMATICS IN .PDF Programming The Arduino Uno can be programmed with the Arduino Software IDE . Select "Arduino/Genuino Uno from the Tools > Board menu according to the microcontroller on your board . For details, see the reference and tutorials. The ATmega328 on the Arduino Uno comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol reference, C header files . You can also bypass the bootloader and program the microcontroller through the ICSP InCircuit Serial Programming header using Arduino ISP or similar see these instructions for details. You can then use Atmel's FLIP software Windows or the DFU programmer Mac OS X and Linux to load a new firmware. Or you can use the ISP header with an external programmer overwriting the DFU bootloader . See this user-contributed tutorial for more information. Warnings The Arduino Uno has a resettable polyfuse that protects your computer's USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed. Differences with other boards 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 USBto-serial converter. |
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