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4-Digit Seven Segment Led Display Module - TM1637

SKU: OSIXI06ACI
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4.5 (110 reviews)
The 4-Digit Seven Segment LED Display Module – TM1637 is a compact digital display module designed for displaying numbers, time, counters, temperature values, sensor readings, scores, and other numerical information. The module combines a four-digit 7-segment LED display with the TM1637 LED display driver IC, allowing the complete display to be controlled using only two signal lines. Unlike a conventional...
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The 4-Digit Seven Segment LED Display Module – TM1637 is a compact digital display module designed for displaying numbers, time, counters, temperature values, sensor readings, scores, and other numerical information. The module combines a four-digit 7-segment LED display with the TM1637 LED display driver IC, allowing the complete display to be controlled using only two signal lines.

Unlike a conventional 4-digit seven-segment display that requires multiple GPIO pins and external multiplexing control, the TM1637 driver handles digit scanning, segment control, display refreshing, and brightness adjustment internally. The microcontroller communicates with the module through the CLK and DIO signal lines, significantly reducing wiring and GPIO requirements. The interface is a TM1637-specific two-wire serial protocol rather than standard hardware I2C.

Common versions of the module feature a 4-digit red LED display with a central colon separator, making them particularly suitable for digital clocks, timers, countdown displays, and stopwatch projects. Typical modules use a 0.36-inch digit display and operate from approximately 3.3V to 5V, depending on the module version.

The module can be easily interfaced with Arduino, ESP32, ESP8266, STM32, Raspberry Pi Pico, Raspberry Pi, PIC, AVR, and other microcontroller platforms using available TM1637 display libraries.

Key Features

  • Four-digit 7-segment LED display module
  • Based on the TM1637 LED display driver IC
  • Displays numerical values from 0000 to 9999
  • Supports negative values within display limitations
  • Central colon separator on clock-style versions
  • Requires only two control signal lines
  • CLK and DIO serial communication
  • TM1637-specific two-wire serial interface
  • Built-in LED multiplexing and display scanning
  • Automatic display refresh
  • Programmable brightness control
  • 8 brightness settings including display-off level
  • Compact PCB module design
  • Low microcontroller GPIO requirement
  • Simple 4-pin connection
  • Easy integration with microcontroller libraries
  • Suitable for clocks, counters, timers, and sensor displays
  • Compatible with 3.3V and 5V controllers on common module versions

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: 4-Digit Seven Segment LED Display Module
Driver IC: TM1637
Display Type: LED Seven Segment Display
Number of Digits: 4
Digit Height: Typically 0.36 Inch (Approximately 9.1mm)
Display Color: Typically Red, Depending on Module Variant
Display Format: 4 Numerical Digits
Colon Separator: Yes, on Common Clock Display Versions
Operating Voltage: Typically 3.3V to 5V DC
Communication Interface: TM1637 Two-Wire Serial Interface
Control Signals: CLK and DIO
Number of Interface Pins: 4
Brightness Control: Programmable
Brightness Levels: 8 Settings Including OFF State
Display Refresh: Automatically Managed by TM1637
Display Scanning: Integrated
Segment Control: Internal Driver Control
Microcontroller Pins Required: 2 GPIO Pins
Typical Maximum Module Current: Up to Approximately 80mA, Depending on Display Content and Brightness
Typical Module Dimensions: Approximately 42mm × 24mm × 12mm
Mounting Type: PCB Module with Mounting Holes
Compatibility: Arduino UNO, Nano, Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico, Raspberry Pi, PIC, AVR, 8051 and other GPIO-capable controllers.

Additional Resources

Led Display Module.PDF

FAQ

1. What is the TM1637 4-Digit Seven Segment Display Module used for?

The module is used to display numerical information such as time, temperature, counters, sensor readings, scores, voltage values, and timer information in microcontroller-based electronic projects.

2. How many microcontroller pins are required to control the TM1637 display?

Only two GPIO pins are required for display communication. One pin is used for the CLK clock signal and the other for the DIO data signal.

3. Is the TM1637 display compatible with Arduino and ESP32?

Yes. The module can be used with Arduino, ESP32, ESP8266, STM32, Raspberry Pi Pico, Raspberry Pi, PIC, AVR, and other controllers with suitable GPIO pins and software libraries.

4. Can the brightness of the TM1637 display be adjusted?

Yes. The TM1637 driver provides programmable brightness control, allowing the display intensity to be adjusted through software according to ambient lighting conditions and application requirements.

5. Can the TM1637 module be used for a digital clock?

Yes. Common TM1637 modules include a central colon separator between the second and third digits, making them particularly suitable for displaying time in formats such as HH:MM and MM:SS.