TM1638 LED & KEY Module 8-Digit 7-Segment Display with 8 LEDs and 8 Buttons for Arduino

The TM1638 LED & KEY Module is a versatile all-in-one display and input module featuring an 8-digit 7-segment display, 8 individual red LEDs, and 8 tactile push buttons — all controlled via a simple 3-wire serial interface. Powered by the TM1638 driver IC, it's a favourite for Arduino and embedded projects requiring compact display and user input in a single board.

Key Features:

• 8-digit 7-segment LED display (red)
• 8 individual red indicator LEDs (D1–D8)
• 8 tactile push buttons (S1–S8) for user input
• TM1638 driver IC — controls display, LEDs, and buttons via 3-wire serial (STB, CLK, DIO)
• 5V operation — directly compatible with Arduino, STM32, ESP32
• 4-pin header connector (VCC, GND, STB, DIO, CLK)
• Compact blue PCB with mounting holes
• Well-supported by Arduino TM1638 libraries

Specifications:

• Driver IC: TM1638
• Display: 8-digit 7-segment (red)
• LEDs: 8x red indicator LEDs
• Buttons: 8x tactile push buttons
• Interface: 3-wire serial (STB, CLK, DIO)
• Supply Voltage: 5V DC
• PCB Color: Blue

Applications:

• Arduino display and input projects
• Frequency counters and timers
• Menu navigation interfaces
• Score displays and game controllers
• Embedded system HMI panels