TM1637 is a compact display module consisting of a 4-digit 7 segment display and communicating via only 2 pins (CLK and DIO). Unlike standard 7 segment displays, it does not require additional driver integrations or a large number of connection cables. It is used in projects where 4-digit numeric data needs to be displayed, such as clock, counter and score display. It is especially preferred in digital clock applications thanks to the two dot (:) sign in the center. There are ready-made libraries compatible with Arduino and ESP series boards.
