πΉ Key Features: βοΈ The Onboard, 150 ma 5 v Regulator. βοΈ8 k Flash Memory (about 6k after bootloader). βοΈThe I2C and SPI (vis USI). βοΈThe Power LED and the Test/Status LEDs. βοΈBuilt-in USB and serial were debugging). βοΈSupport for the Arduino IDE 1.0 + (OSX/Windows/Linux)