Introduction
Arduino is a programmable board with digital and analog inputs and outputs, making it ideal for automation projects. It allows you to interact with the environment using sensors, actuators, and motors, all controlled by simple programming.
Which Model Should You Buy?
| Model | Digital Inputs | Analog Inputs | Power Outputs | UART | Memory | Price |
|---|---|---|---|---|---|---|
| Uno r3 | 16 | 6 | 6 | 1 | 32kb | 7.5€ |
| Leonardo | 20 | 12 | 7 | 1 | 32kb | 10€ |
| Mega r3 | 54 | 16 | 14 | 4 | 256kb | 12.5€ |
Final Recommendation: Start with the Arduino UNO as a basic model, then move to the MEGA for larger projects.