![arduino nano pinout voltage supply arduino nano pinout voltage supply](https://www.avrfreaks.net/sites/default/files/nano_0_errror.png)
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. Input and OutputĮach of the 14 digital pins on the Nano can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. The ATmega168 has 1 KB of SRAM and 512 bytes of EEPROM (which can be read and written with the EEPROM library) the ATmega328 has 2 KB of SRAM and 1 KB of EEPROM.
#ARDUINO NANO PINOUT VOLTAGE SUPPLY CODE#
The DFRduino Duemilanove 168 (SKU:DFR0002) has 16 KB of flash memory for storing code (of which 2 KB is used for the bootloader) the ATmega328 has 32 KB, (also with 2 KB used for the bootloader). As a result, when running on external (non-USB) power, the 3.3V output (which is supplied by the FTDI chip) is not available and the RX and TX LEDs will flicker if digital pins 0 or 1 are high. The FTDI FT232RL chip on the Nano is only powered if the board is being powered over USB. The power source is automatically selected to the highest voltage source. The DFRduino Nano can be powered via the Micro USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27).
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