Arduino uno tarjeta uno es

Arduino Uno

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Introducción

El Arduino Uno es una tarjeta microcontroladora basada en el ATmega328 (datasheet). Este tiene 14 pines entrada/salida (de los cuales 6 pueden ser usados como salidas PWM), 6 entradas analógicas , un oscilador de cristal de 16 MHz , una conección USB , un jack de poder, un ICSP header, y un botónde reset. Contiene todo lo necesario para soportar al microcontrolador; simplemente conéctelo a una computadora mediante un cable USB o con un adaptador AC-a-DC o una batería para empezar.

El Arduino Uno difiere de todas las tarjetas antecesoras en que el usa el chip driver FTDI USB-a-serial. En su lugar, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serialconverter.
"Uno" significa Uno en Italiano.

Resumen

Microcontrolador ATmega328

Voltaje de Operación 5V
Voltaje de entrada(recomendado) 7-12V
Voltaje de entrada (limites) 6-20V
Pines E/S Digital 14 (de los cuales 6 proporcionan salida PWM)

Pines Entrada Analógica 6

Corriente DC por cada Pin E/S 40 mA
Corriente DC para 3.3V Pin 50 mA
Flash Memory 32KB (ATmega328) de los cuales 0.5 KB son usados por bootloader

SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)
Clock Speed 16 MHz

P o w e r

The Arduino Uno can be powered via the USB connection or with an external power supply. The power source is selected automatically.

External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adaptercan be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector.

The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltageregulator may overheat and damage the board. The recommended range is 7 to 12 volts.

The power pins are as follows:

VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.5V.This pin outputs a regulated 5V from the regulator on the board. The board can be supplied with power either from the DC power jack (7 - 12V), the USB connector (5V), or the VIN pin of the board (7-12V). Supplying voltage via the 5V or 3.3V pins bypasses the regulator, and can damage your board. We don't advise it.

3V3. A 3.3 volt supply generated by the on-board regulator. Maximum currentdraw is 50 mA.

GND. Ground pins.

M e mo r y

The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).

I n p u t a n d O u t p u t

Each of the 14 digital pins on the Uno can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have specialized functions:

Serial: 0 (RX) and 1 (TX). Used to receive (RX) and transmit (TX) TTL serial data. These pins are connected to the corresponding pins of the ATmega8U2 USB-to-TTL Serial chip.

External Interrupts: 2 and3. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.

PWM: 3, 5, 6, 9, 10, and 11. Provide 8-bit PWM output with the analogWrite() function.

SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication using the SPI

library.

LED: 13. There is a...