Microduino: Arduino in your pocket, small, stackable, smart by Microduino Studio
A small sized board that packs a great punch! The Microduino series is a 100% Arduino compatible open source hardware, compatible with Arduino IDE development environment and existing Arduino sketches. Microduino is small. Its size is about a quarter (25.40mm X 27.94mm / 1.0inch X 1.1inch), much smaller than the original Arduino board. All Microduino boards adopt a uniform U-shape 27-pin standard pin-out (UPin-27). Microduino configures the pinout usage table well so as to avoid any pin usage conflict between different extension modules. We've benefitted from the open source community, and we're dedicated to giving back. Once you upload an Arduino compatible program onto the Microduino, you don't need Microduino-FT232R anymore. Also there are various Microduino pin-out compatible (UPin-27) extension modules available with low price (check details below), which decreases prototyping and production cost. You can reach us through Facebook, Google+, Twitter and Wiki for more Information. 1. 2.