Arduino - What it is?
Table of contents
What is Arduino?
Arduino is an open-source electronics platform based on easy-to-use hardware and software.
Usage
Arduino is great for educational purposes and small to medium projects.
Boards
| Mega R3 | Uno R3 | Nano | |
| Length (mm) | 101.52 | 68.6 | 45 |
| Width (mm) | 53.3 | 53.4 | 18 |
| Weight (g) | 37 | 25 | 7 |
| Processor | ATMEGA2560 | ATMEGA328P | ATMEGA32U4 |
| CPU Speed (MHz) | 16 | 16 | 16 |
| Flash Memory (kb) | 256 | 32 | 32 |
| Bootloader Used Memory (kb) | 8 | 2 | |
| Output Voltage (V) | 5 | 5 | 5 |
| Input Voltage (V) | 7-12 | 7-12 | 7-12 |
| Power Consumption (mA) | 19 | ||
| Digital I/O Pins | 54 | 14 | 22 |
| Digital I/O with PWM Pins | 15 | 6 | 6 |
| Analog Pins | 16 | 6 | 8 |
| LED_BUILTIN | 13 | 13 | 13 |
Full I/O pins diagrams (PDF):