4 Digit Display with TTL, SPI or I2C Serial Interface

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