Also, there is no 2.1 mm DC jack to provide external power supply. Layout of Arduino Nano BoardĪs you can notice, the Type-B USB connector from Arduino UNO is replaced with mini-B type connector. As you can see from the previous image, there are a couple of components on the bottom side of the board as well (5V Regulator and USB-to-Serial Converter IC are the main ones). The following image shows the layout of a typical Arduino nano board. Personally speaking, I suggest Arduino Nano over UNO as it is cheaper, breadboard friendly, small in size and has couple of more pins (digital and analog IO) than UNO. Overall, the Arduino Nano is a very good alternative to the mighty Arduino UNO and is available at a lower price. The Nano board is designed in such a way that the pins are breadboard friendly so that you can easily mount it on one for your DIY projects. Other than that Nano is very similar to UNO in terms of functionality. If you compare UNO and Nano, then Nano lacks the DC Power Jack and contains a mini-B type USB connector. Front and Back view of Arduino Nano Boardĭespite the size, Arduino Nano packs in more or less the same features as UNO. Both UNO and Nano are based on ATmega328P Microcontroller but Nano is significantly smaller in size compared to UNO. What Communication Interfaces are available on Arduino Nano?Īfter Arduino UNO, the most popular board in the Arduino line-up is probably the Arduino Nano.What are the Input and Output Pins of Arduino Nano?.What are Different Memories of Arduino Nano?.Technical Specifications of Arduino Nano.

Arduino uno pinout compared to mega