TM1637 4-Digit Seven Segment LED Display Module

The TM1637 4-Digit Seven Segment LED Display Module packs four common-anode digit tubes onto a single board, driven by the dedicated TM1637 controller chip. Instead of wiring up dozens of segment and digit pins individually, this module needs just two signal lines to control all four digits, freeing up valuable I/O pins on your microcontroller.

Communication happens over a simple two-wire protocol similar to I2C, using dedicated DIO (data) and CLK (clock) lines alongside power and ground. While the TM1637 chip does support keyboard input in some designs, this particular module is used purely as a display driver, making it straightforward to wire and code.

• Display – 4-digit, common-anode, 0.36-inch seven-segment tubes
• Driver IC – TM1637
• Control interface – Two-wire (DIO and CLK) digital control
• Pinout – GND, VCC (5V), DIO, CLK
• Ease of use – Multiplexed display requiring minimal MCU pins
• Typical uses – DIY clocks, counters, numeric readouts
• Mounting – 4 x M2 screw positioning holes for easy installation

Whether you are building a DIY clock, a counter display or any project that needs a clear four-digit numeric readout, this module handles the segment driving for you. The TM1637 4-Digit Seven Segment LED Display Module is an easy way to add a legible digital display to Arduino and other microcontroller projects.