D-Link DSL-G684T Manual de usuario descargar pdf (Pagina 13)

provided mostly in wiki-like and forum form which is bothersome when meeting problems

during development process. Experience shared with other developers helps to improve

following versions of Arduino board but lack of the old fashioned technical specification

forced me to look through countless data in order to find needed information.

The Arduino Uno is microcontroller equipped with ATmrga328. It has 14 digital

I/O pins of which 6 can be used as PWM outputs, 6 analog inputs, a 16 MHz crystal

oscillator, a USB connector, a power jack an ISCP header, and a reset button. The main

difference between other solutions available is the lack of the FTDI USB-to-serial driver

chip. Instead the ATmega8U2 programmed is supported as a USB-to-serial converter.

The board can be powered via USB, DC adapter (wall-wart) or battery. The power

source is selected automatically. To use AC to DC adapter we need 2.1mm center-positive

plug power jack. Battery can be connected either to USB, power jack or inserted in Gnd

and Vin pin heads of the POWER connector. The recommended range of supply is 7 to 12

volts despite limits of 6 to 20 volt due to the fact that voltage lover than 7V makes 5V

onboard pin unstable and voltage higher then 12V can lead the voltage regulator to

overheat and directly damage the board.

To communicate with computer ATmega8U2 provides UART TTL (5V) serial

Figure 5. Arduino Uno – Back

[source: http://arduino.cc/en/Main/ArduinoBoardUno]

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D-Link DSL-G684T Manual de usuario Pagina 13