A typical Arduino microcontroller board is pretty small, about the size of a credit card. This makes it suitable for embedding into all sorts of electronic devices. But it's possible to go even ...

[Fabio Varesano’s] new Arduino ... the board is small (smaller than a pro mini) it is not directly breadboard friendly. Even though the hole spacing is 0.05 inch, the size is large enough ...

All Arduino-compatible boards and extension modules created by Microduino are about the size of a quarter and stackable, which makes it easy to build micro-robotics and other tiny projects.

Most of the sensors and modules that we commonly use are already very small in size but the Arduino compatible boards used to drive them were not so much. There are some development boards that ...

In a nutshell, the Digispark is the “little brother” to the Arduino line of development boards–a pint-sized (it’s the size of a quarter!), Arduino-compatible open-source USB development ...

Arduino enthusiasts looking for a super small Arduino-based development board may be interested in the AAduino, which takes the form of an Arduino clone that is the same size as a AA battery.