Added analog multiplexed button support (many buttons now only use one MPGuino pin). Along with that, added support for the
Parallax 5-position switch. Freed up two ADC pins in the process, enabling them to either be used as additional analog inputs, or as the Two-Wire Interface (TWI) that is supported by the MPGuino's processor. This would allow the addition of up to 127 more devices to MPGuino (such as an I2C LCD module, or an I2C SD card interface, or an I2C EEPROM, or... ?)