An application that does not require a strong CPU but needs plenty of GPIO will do well with the Mega.Īnalog projects can be done with all the Arduino boards, but the Due stands out with 12 analog inputs and 2 analog outputs. If a project requires plenty of GPIO, the Due and Mega are the obvious choices. The UNO and Nano use the same processor which means that in terms of hardware and peripherals the UNO and Nano are identical. While the Mega is a large Arduino with plenty of GPIO, its CPU speed is still the same as that found on the UNO and Nano (same Mega family) and so there is no speed advantage to using the Mega. If a project requires high processing power, the Due comes out on top with its powerful ARM core and large RAM/ROM. The Mega and Due are much larger boards which makes them difficult to use in space restricted applications. It is the first Arduino board based on a 32-bit ARM core microcontroller. The UNO is a medium sized development board but is still small enough to be mounted to many projects including remote-controlled devices such as RC cars and boats. The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU ( datasheet). When it comes to physical dimensions the Arduino Nano is the smallest and is a very portable device. ![]() ![]() When looking at hardware the following should be considered: While the cost aspect of each Arduino is obvious (the lowest cost option is always the preference), the hardware may not be so easy to determine. The deciding factor each project will use comes down to two basic things: hardware and cost. This means that you are unlikely to fall into device-specific traps that could prevent a piece of code from working because of hardware configurations or inherent bugs.Īrduino code can be easily transferred to different boards with virtually no changes which is highly beneficial to any designers wanting to change their mind about what board their project will use. Start with an Arduino Uno if you want to learn programming and have fun with leds and buttons. ![]() Its always good to have one lying around. My suggestion is to use an Arduino Uno for all kind of testing. The Due is compatible with all Arduino shields that work at 3.3V and are compliant with the 1.0 Arduino pinout. The Arduino Mega pins can drive more than 20mA, it can be used to drive 10 leds with 20mA simultaneously, the Arduino Due cant do that. Now that we looked at some of the details about each board, optimal uses of each board can be determined.Īlthough the UNO is the most popular board, all boards have excellent support through online forums thanks to the common architecture and the use of a common language and IDE. The Arduino Due board contains everything needed to support the microcontroller simply connect it to a computer with a micro-USB cable or power it with an AC-to-DC adapter or battery to get started.
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