Hardware Reference
In-Depth Information
Arduino Mega 2560 R3
Another popular choice, especially when additional program space and programming
power is needed, is the Arduino Mega 2560 R3. The following is an image of this Ardu-
ino:
Choosing the Arduino Mega
The Arduino Mega is Arduino of choice for larger projects that require more program-
ming space, a more powerful processor, more I/O, or all of these. It uses an ATmega2560
processor, which runs programs faster than the ATmega328 processor. The biggest differ-
ence, perhaps, is the larger program size. It has a total of 256 KB of memory, which can
store much larger programs than the standard Arduino Uno. It also has more analog and
digital I/O pins.
Note
The add-on shields are boards that can fit on top of Arduino to add more functionalities.
However, it is important to note that they are made to fit the Arduino Uno may not fit the
