![]() ![]() The fascinating feature in Nano is that it will choose the strongest power source with its potential difference, and the power source selecting jumper is invalid. This port is used for both programming and serial monitoring. The Nano board doesn’t have a DC power jack as other Arduino boards, but instead has a mini-USB port. The extra 2 pins of Arduino Nano serve for the ADC functionalities, while UNO has 6 ADC ports but Nano has 8 ADC ports. The main difference between them is that the UNO board is presented in PDIP (Plastic Dual-In-line Package) form with 30 pins and Nano is available in TQFP (plastic quad flat pack) with 32 pins. The Nano is inbuilt with the ATmega328P microcontroller, same as the Arduino UNO. How different is Arduino Nano?Īrduino Nano has similar functionalities as Arduino Duemilanove but with a different package. This article discusses about the technical specs most importantly the pinout and functions of each and every pin in the Arduino Nano board. The Nano board weighs around 7 grams with dimensions of 4.5 cms to 1.8 cms (L to B). The Arduino Nano, as the name suggests is a compact, complete and bread-board friendly microcontroller board. We’ve created a well explained, diagram based pin out representation of Arduino Nano. ![]() (Although LiPos have better power storage density than common AA/AAA batteries, that only maters if you need the whole thinkgto be small or light, in which case you shouldn't even be using an Arduino Board but rather the raw microcontroller and WiFi chip in your own custom circuit).In this guide, learn about Arduino Nano pin outs and diagrams. Personally I would recommend you supply it using a 5V wall plug via Vin unless for your application you really need portability, in which case it's probably better to use 4xAA or AAA batteries (use rechargeable ones to make it cheaper) as even the AAA ones have 1000mAh which is more power storage than that LiPo and are also much cheaper. This is why in the specs they give you both the supply voltage - which gets fed to the Voltage Regulator and is thus limited by what it can take - and the operating voltage because that's the signal voltage that comes out of the I/O pins for a HIGH logic level and is the maximum signal voltage that can be provided from outside to the I/O pins. the board) don't get connected to voltages above 3.3V (for example if you have in your external circuit something that is independently fed with 5V, you need to make sure that if it sends data to that Nano board the voltage does not exceed 3.3V, which usually means some form of conversion (usually a voltage divider or a logic level converter) that lowers the voltage of the signal coming from the higher voltag external circuit. ![]() However, although the power supply part is covered by the Voltage Regulator that's on the board, its still up to you to make sure that the I/O pins of the microcontroller (i.e. (Also, for that microcontroller 3.7V is above the voltage it's specification says it can take directly, so it will probably not work and might be damaged if you supply it directly - via the 3.3V pin - with that) BEWARE that the Voltage Regulator also has a minimum input voltage which is a bit above it's output voltage (which in this case is 3.3V), so if you're thinking of feeding that board with 3.7 from a LiPo you need to make sure that's at or above that minimum. ![]() The microcontroller works at 3.3V, so it expects 3.3V as voltage supply and that's the maximum it can take IN or put OUT of its I/O ports.įortunately the Arduino board has a Voltage Regulator which can take as an input (via Vin, the USB connection or the power plug) any voltage up to (in this case) 21 V and which will output the required 3.3V for the microcontroller and also make it available for external circuits on the 3.3V pin. ![]()
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