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TM1638 button digital LED display module (8 digits \ LED \ button) electronic module board


The following are the same as the "

Information download address:


Including the following resources:

1,8 keys,

2,8 LEDs,

3,8 digital tube

The module used by the chip TM1638, a collection of three common microcontroller peripheral peripheral circuit, the biggest feature is only need to take up the three IO can drive the microcontroller, scan display and key scan does not require microcontroller intervention, only need to read and write the relevant register to send display Data or detection keys to save MCU resources. Purchase the module to provide an example program.

Imagine, we usually use the microcontroller 8 external LED, 8 digital tube, 8 keys which need to take up the number of IO port, far more than three IO port, but with this module can be achieved. By the practical application, the key sensitive display is good.

Wiring method:

VCC GND 5V power supply, STB CLK DIO connected to the microcontroller IO port.

Shipping list:

1. Keypad LED display module 1 block

  • Brand Name: KAI TUO DA
  • special service: Electronic module
  • Supply Voltage: datasheet
  • power: TM1638
  • Package: Package
  • Types of: Single chip
  • Model Number: title & photo
  • Number of pins: TM1638
  • Operating Temperature: datasheet
  • Condition: New
  • batch number: TM1638
  • Dissipation Power: datasheet
  • use: other
  • Type: module
  • Application: datasheet

  • Package Weight: 0.05kg (0.11lb.)
  • Unit Type: piece
  • Package Size: 10cm x 10cm x 8cm (3.94in x 3.94in x 3.15in)