SPI Eases Interfacing For 5-By-5 Dot-Matrix Display (.PDF Download)

When discussing displays, seven-segment displays and LCDs are among the first that come to mind. Each type has its pros and cons. But generally, seven-segment displays cannot display letters, and LCDs tend to be bulky. Recently, I came across a four-character 5-by-5 dot-matrix, serial-input display (the SCDV5542 from Osram) that has several advantages.