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.
The Willow Grove Park Mall is located on the site of the previous Willow Grove Amusement Park in the unincorporated community of Willow Grove in Abington Township, Montgomery County, Pennsylvania, 15 miles (24 km) north of Center City Philadelphia in the northern suburbs of the city.