TM1638 8-Digit 7-Segment LED Display Module with 8 Keys (Serial Interface Display Board)

The TM1638 8-Digit 7-Segment LED Display Module with 8 Keys is a multifunction user interface board designed for embedded systems and microcontroller applications. Based on the TM1638 LED driver IC, it combines eight 7-segment LED displays with eight push-button keys, enabling both visual output and user input through a simple serial communication interface. The module is ideal for Arduino, STM32, AVR, PIC, ESP32, and other development platforms, providing an efficient solution for digital displays, control panels, and interactive electronic projects.

Key Features -

• Integrated TM1638 LED display driver IC

• Eight 7-segment LED displays for numeric and character output

• Eight push-button keys for user input

• Simple serial communication interface with clock and data lines

• Compact PCB module for easy integration

• Reduces microcontroller GPIO pin usage

• Compatible with Arduino, STM32, AVR, PIC, and ESP32 boards

• Suitable for display, control, and human-machine interface applications

• Stable and reliable operation with minimal wiring

• Easy programming using widely available TM1638 libraries

Specifications -

• Product type - LED Display and Key Interface Module

• Main IC / Chipset - TM1638

• Display elements - Eight 8-bit 7-segment LED displays

• Keys - Eight push-button inputs

• Operating voltage - 5V DC (Typical)

• Communication interface - Serial (Clock and Data Lines)

• Module size - Standard compact PCB board

• Package / Mounting type - PCB Module with Header Pins

Applications -

• Arduino display and control projects

• Digital counters and timers

• Electronic clocks and stopwatches

• Instrumentation and measurement displays

• Embedded user interface panels

• Industrial control systems

• Home automation control panels

• Educational electronics and prototyping