Quad Alphanumeric Display - White 0.54" Digits w/ I2C Backpack [Discontinued] _MAKE_LED_NEO Matrices like these are 'multiplexed'

Matrices like these are 'multiplexed' - so to control all the seven-segment LEDs you need 14 pins

Datasheets for the MCP3202 and MCP4822 can be found on the technical information tab

start win 7 or win 8

LED Indicator Link/Active ( Green )

And since you're so interested

Quad Alphanumeric Display - White 0.54" Digits w/ I2C Backpack [Discontinued] _MAKE_LED_NEO Matrices like these are 'multiplexed'Display, elegantly, 012345678 or 9! Gaze, hypnotized, at ABCDEFGHIJKLM well it can display the whole alphabet. You get the point. This is a nice, bright alphanumeric display that shows letters and numbers in a beautiful white hue. It's super bright and designed for viewing from distances up to 23 feet (7 meters) away. Digits have seven white segments on a black surface and we give you a set of two alphanumeric displays as well as a driver board so you