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LED: There is a built-in LED driven by digital pin 13.When the pin is high value, the LED is on, when the pin is low, it is off. VIN: The input voltage to the Arduino/Genuino board when it is using an external power source (as opposed to 5 volts from the USB connection or other regulated power source).
An official Arduino Uno R2 with descriptions of the I/O locations The Arduino board exposes most of the microcontroller's I/O pins for use by other circuits. The Diecimila , [ a ] Duemilanove , [ b ] and current Uno [ c ] provide 14 digital I/O pins, six of which can produce pulse-width modulated signals, and six analog inputs, which can also ...
Arduino Uno compatible, D13 pin isolated with a MOSFET of which can also be used as an input. KitTen [126] ATmega328P Freetronics Includes both 3.3 V and 5 V regulators for shields, D13 pin isolated with a MOSFET of which can also be used as an input. Can be connect to Arduino using CAT5 cable. [127] EtherDue [128] ATSAM3X8E [16] Freetronics
Arduino Uno compatible, D13 pin isolated with a MOSFET of which can also be used as an input. KitTen [117] Freetronics ATmega328P 16 MHz Includes both 3.3 V and 5 V regulators for shields, D13 pin isolated with a MOSFET of which can also be used as an input. Can be connect to Arduino using CAT5 cable. [118] EtherDue [119] Freetronics
Sets the output value on pins configured as outputs. Enables or disables the pull-up resistor on pins configured as inputs. PINx: Input register, used to read an input signal. On some devices, this register can be used for pin toggling: writing a logic one to a PINx bit toggles the corresponding bit in PORTx, irrespective of the setting of the ...
ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini [4] and Arduino Nano models.
A GPIO pin's state may be exposed to the software developer through one of a number of different interfaces, such as a memory-mapped I/O peripheral, or through dedicated IO port instructions. Some GPIOs have 5 V tolerant inputs: even when the device has a low supply voltage (such as 2 V), the device can accept 5 V without damage.
Table notes. Board Size Group column - Simplified board dimension size grouping: Nano means similar size as Arduino Nano board. This table has a similar layout as a table in the Arduino Uno article. MCU Part# / Pins column - MCU means microcontroller. All MCU information in this table was sourced from official datasheets in this column. The pin ...