Arduino is an open-source electronics platform, which is based on easy-to-use hardware and software. A non-technical person, but having interest to develop some electronic hobby project, can also work on this. Programming is so easy that a layman can understand and play with it. However, hardware knowledge is required. Since if any mistake is done then hardware can be destroyed and it is about losing money. So be careful from hardware point of view. The board design is open source; it means that anyone is allowed to product Arduino compatible boards. This is the reason you can find Arduino board in less price also. Software for sketching is free as well. Types of Arduino There are many types of Arduino; few of them are given below. Arduino UNO : The Arduino UNO is the best board to get started with electronics and coding. This is a simplest board from Arduino series. It is robust as well. The microcontroller used in this is Atmel 328. Ther...