Arduino is a programmable board with digital and analog outputs, whose low cost makes it ideal for beginners or make small home automation projects in electronics and robotics. This means that we have a small "robot", capable of receiving information from the environment (sensors) and perform actions (actuators, motors ...), according to a program that we introduce with a computer, and can run autonomously.
Arduino is flexible, and reliable. So, why we said in domestic projects? Why not in commercial or industrial applications? It's something that at some point you may be tempted, in fact we know that people get commercial products are based on Arduino. However, if one day you touch control (for example) the air conditioning of a sports complex of 4000m2, where only the cooling costs € 250,000, will seem foolhardy to install a driver for 15 euros. You will prefer to install a general automaton costing €500-1000, which will offer a certificate and a guarantee for your peace of mind and protect your signature (although there each with their professional judgment).
However all that you have learned about electronics, automation, programming and telecommunications, which you can apply directly and easily in case of having to use a more expensive controller, so that Arduino is an excellent platform for practice and learning. It also will bring hours of fun doing your projects in robotics and electronics for less than the cost of a night out, which is always very good.
To start with Arduino, of course, the first thing is to buy one. So let's look at the different models available.
Arduino There are many models available, which can be a bit confusing for new users. When choosing it is normal that we look at the number of inputs and outputs which have, especially since the analog are those usually restrict our project. In the next chart you can see the most common models Arduino, with its most important features and reference price by purchasing them on Ebay from international Chinese suppliers.
It is customary to begin with an Arduino UNO V3. This is the standard model and the plate will be using usual. For certain large projects that require handling a large number of engines or motors serve (robots, CNC machines, 3D printers) may be necessary to move to a model with more outlets, especially analog. In that case it is normal to use an Arduino MEGA r3.
Meanwhile, the Mini model 05 is a model for advanced users. It is a plate of just €2.5 and a really small size, designed for end-use applications, that is, when you'll leave permanently connected (and therefore going to "lose") plate. Comes without connection terminals must be soldered, and to program FTDI USB adapter that costs €3.5 is required. Expert levels this is practically the only model plate You will wear because, if they require a lot of inputs or outputs, it is more economical form a network of 3 or 4 plates mini, and you get an upgrade to a MEGA capacity.
Therefore, final recommendation. Buy an Arduino UNO, which will be your standard development board. When you become advanced, buy one or two Arduino Mini, along with the programmer. And only for specific projects where one stays small, and if you do not want complicaros life making networks Arduinos Mini, or if you need to use additional serial ports, you can use a MEGA.
Regardless of Arduino SCM boards or SCM components, you also could purchase at Banggood, which is one of the wholesale platform to provide you the low prices. Such as,
v3 usb cable,
cw transceiver kit, etc.