Arduino Nano PinoutĪrduino Nano board has 14 digital contacts, which are marked with the letter D (digital). uses a chip ATmega168 with less memory (flash, non-volatile) and lower clock frequency, version 3.0. There are versions 2.X, 3.0., which differ only in the chip on which they work. The last general-purpose LED lights up when a high signal is given.Īt the moment, there are several types of Arduino Nano. The PWR LED lights up when the voltage is 5V and indicates that power is connected. The first two LEDs light up when the signal level is low and indicate that a TX or RX signal is active.
They are designated as TX, RX, PWR and L. There are 4 LEDs on the board which show the signal state. The highest inrush or outrush current should not exceed 40 mA, and the total contact current should not exceed 200 mA. In this case, the signal must be connected through a resistor in order not to disable the controller. When power is supplied beyond these values, protective diodes will limit the voltage. All digital and analog contacts work in the range from 0 to 5 V. The Arduino Nano board has the same voltage and current limits for the board inputs and outputs. The diagrams of both types of power supply are shown in the picture.Īt connection of two voltage sources, the board chooses the one with the highest power supply. When connected via a cable from a computer, a connection to the stabilizer is made via the Schottky diode.
The external power supply is stabilized with the LM1117IMPX-5.0 5V circuit. Through an external power supply with a 6-20V low ripple voltage.Via mini-USB or micro-USB when connected to a computer.1 KB or 2 KB RAM, depending on the chip.Flash memory 16 KB or 32 KB, depending on the chip.The maximum current of the digital output is 40 mA.Number of digital pins – 14, 6 of them can be used as PWM outputs.Input power supply 7-12V (recommended).Technical specifications of the Arduino Nano: Otherwise, the parameters are the same as the Arduino Uno model. Arduino works via USB (mini-USB or micro-USB). The board does not have an external power socket. Due to its size, the board is often used in projects where compactness is important.
#ARDUINO NANO PINOUT FOR PROGRAMMING FULL#
It is a full analog of Arduino Uno – also works on the chip ATmega328P (although you can still find options with ATmega168), but with a smaller form factor. 7 Conclusion Arduino Nano board: a quick overviewĪrduino Nano V3Nano is one of the smallest Arduino boards.
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