This allows your program on the board to communicate with the computer via serial interface and abstract away the USB protocol completely.Īrduino Nano USB to Serial Converter Chip Arduino Nano USB to Serial Converter Chip When sending or receiving data via RX and TX pins, they go to this chip and get converted to the USB protocol and vice versa. This should be specified first using the pinMode function as below: void setup ( ) Īrduino Nano LEDs Arduino Nano LEDs USB To Serial Converter ChipĪrduino Nano comes with a USB To Serial converter chip on the back of the board. Otherwise, their technical specifications are the same.Īrduino Nano's Microcontroller Arduino Nano's Microcontroller Digital I/O PinsĪrduino Nano has 14 digital input/output pins labeled from D2 to D13.Ī digital pin can be used either as input or output pin. The letter 'P' in the microcontroller's name is for Picopower, referring to the fact that it has less power consumption than the ATmega328 which is used in Arduino Uno Rev3. The main processor of the Arduino Nano is the ATmega328P microcontroller in 32-pin quad flat package (VQFN). In this section we review the board pinout and will have an overview on its physical properties as well as major components on the board.Īrduino Nano Dimensions 18 mm 45 mm Arduino Nano Dimensions The ATmega328P Microcontroller
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