Using an Arduino Nano, programmed to use D2 and D11 that are connected to KBD_P and KBD_STROBE, demonstrating use of a MCU device to coordinate typing keys on an IBM 5110. The scan code for "9" is already 0xFF, making it the easiest key of this system to type (just indicate EVEN bit count {8} on the PARITY, then STROBE to press). The program intentionally had a 1 second delay between key presses.