Module consisting of a a classic 4-digit 7-segment display and an ATMega328 microcontroller allowing you to control every segment individually using only a few serial lines. It can be controlled in three ways: TTL, SPI or I²C serial communication. Display numbers, most letters, and a few special characters. There is also an FTDI header on board and we’ve provided a hardware profile for the Arduino IDE to make it even easier to program.

• 4 digit red alpha-numeric display with TTL, SPI or I2C Serial Interface
• Display numbers, most letters, and a few special characters
• Individual control of decimal points, apostrophe, and colon
• Selectable baud rate
• Selectable brightness
• Baud rate and brightness values retained in non-volatile memory
• Individual segment control for each digit
• 41mm x 23mm (1.6in x 0.9in)

• Schematic
• Eagle Files
• Datasheet
• Hookup Guide
• Arduino Add-On
• Github Repo