The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button.
As the name suggests, Elk Grove Village is home to a small herd of elk kept in a grove at the eastern edge of the Busse Woods forest preserve. However, elk are not native to the area, and the name Elk Grove actually comes from a mispronunciation of the Native American name for the place.
Spring Grove is a village in McHenry County, Illinois, United States. The population was 3,880 at the 2000 census. The population has grown to 5,303 as of 2005. It is also home to Chain O'Lakes State Park. The current village president is Mark Eisenberg. Spring Grove is home to Richardson's corn maze, known as the largest corn maze in the world. The pattern of the maze changes annually, often featuring Chicago sports teams.