The Uno R2 a new block of six pins appeared on the PCB, in addition to the block This book refers to this as the baseline Arduino form factor. With the Diecimila, the Duemilanove, the Uno R2 (revision 2), and the Uno SMD theĪrrangement of the I/O socket headers along the edges of the PCBs is unchanged. The functions of the I/O and other pins on each PCB are described Layout that determines the physical design of most shields and other add-onĬomponents. Baseline, in this context, refers to the “classic” Arduino PCB In between there are the DuemilanoveĪnd Uno variants. Identical internally, and consist of a DC voltage regulation circuit and two ICs.įigure 4-1 shows a block diagram of the Diecimila and Duemilanove modelsįigure 4-4 shows the physical layouts for six different baseline Arduinoīoards, from the Diecimila to the Leonardo. Those boards that do not have a USB interface must be programmed using an externalĪrduino types that use the FTDI FT232RL serial-to-USB interface chip are essentially The operation of these parts is transparent when using the Arduino IDE to create In the Uno, Uno R3, and Mega2560 theĪdditional small ATmega processors are preprogrammed to serve as a USB interface.
#ARDUINO UNO PINOUT SERIAL#
Standard serial (such as RS-232) and USB. The older Arduino models with USB used an FTDI interface chip (the FT232RL), anĪTmega8 (Uno), or an ATmega16U2 (Mega2560 and Uno R3). This part has a built-in USB interface, whichĮliminates the need for the additional chip seen on earlier Arduino models with a Starting with the Leonardo board (2012), the ATmega32U4 XMEGA microcontroller has been Arduino hardware features Board nameĬ Pulse-width modulation outputs (alternate DIO pin functions). Position on a 0.1 inch (2.54 mm) socket header, or the pins extending from theīottom of a shield PCB. “pin” as a connection point of some sort, be it a lead on an IC package, a Shields that plug into these sockets are the actual pins. The connection points on an Arduino board are sockets, and the jumpers and Terminology encountered elsewhere, but it’s not completely technically correct. This is mainly to maintain consistency with the However, Mbed boards may support the usage of PWM and timers functions on other pins as well.The term “pin” is used in this and other sections when referring to the In the Arduino Uno standard, there are only 6 PWM and timers available on pins ARDUINO_UNO_D3, ARDUINO_UNO_D5, ARDUINO_UNO_D6, ARDUINO_UNO_D9, ARDUINO_UNO_D10 and ARDUINO_UNO_D11. The Arduino Uno connector for Mbed boards supports UART functionality on specific pins and can be accessed using the pin alias's below ARDUINO_UNO_UART_TX or ARDUINO_UNO_D1įor more details about UART, please check the Mbed API.
![arduino uno pinout arduino uno pinout](https://i.pinimg.com/originals/9a/74/68/9a7468b9be3177749f99751c56f2ab18.jpg)
The Arduino Uno connector for Mbed boards supports I2C functionality on specific pins and can be accessed using the pin alias's below.
![arduino uno pinout arduino uno pinout](https://i.stack.imgur.com/vvgIz.png)
If you need more SPI chip selects(CS) for your application, these can be controlled using additional digital out pins with the alias explained previously on this page The Arduino Uno connector for Mbed boards supports SPI functionality on specific pins and can be accessed using the pin alias's below ARDUINO_UNO_SPI_CS or ARDUINO_UNO_D10
#ARDUINO UNO PINOUT FULL#
The full digital and analog pin alias list for the Arduino Uno connector can be seen below. The analog input functionality on the Arduino Uno connector can only be accessed on pins ARDUINO_UNO_A0 to ARDUINO_UNO_A5. Digital pin functionality such as GPIO output or input on the Arduino Uno header can be accessed from any of the pins labelled as ARDUINO_UNO_D0 to ARDUINO_UNO_D15 and ARDUINO_UNO_A0 to ARDUINO_UNO_A5. Please note that the Arduino Uno only supports analog inputs and does not support analog output functionality. The Arduino Uno connector for Mbed boards supports both digital and analog pins. The following diagram shows the Arduino Uno standard for Mbed boards:
#ARDUINO UNO PINOUT CODE#
To achieve meaningful portability of application code across various Mbed boards that are Arduino Uno compliant, the pin names used for the connector pins are common across these boards. The Arduino Uno connector is a standardised connector in Mbed, which has a set amount of exposed functionality.
![arduino uno pinout arduino uno pinout](https://www.luisllamas.es/wp-content/uploads/2015/11/aduino-pinout-uno.png)
Arduino Uno Pin Names Arduino Uno Pin Names