TM1637

The TM1637 4-Digit 7-Segment LED Display Module with colon for clock display. Controlled via just 2 signal lines (DIO + CLK), freeing up MCU pins. Displays digits 0–9 and selected characters (A, B, C). Common anode, 0.36 inch digit height. 4× M2 mounting holes. Easy to integrate with Arduino using the TM1637 library.

Pinout:

• GND — Ground
• VCC — 5V
• DIO — Data (e.g. D2)
• CLK — Clock (e.g. D3)

Specifications:

• Digits: 4 (7-segment, common anode)
• Digit Height: 0.36 inch
• Interface: 2-wire serial (I2C-like)
• Supply: 5V
• Mounting: 4× M2 screw holes

Applications:

• Digital clocks and timers
• Counter and score displays
• Sensor data readout (temperature, speed, etc.)
• Arduino numeric output indicator