8-Bit Digital LED Tube 8-Bit TM1638 Key Display Module
8-Bit Digital LED Tube 8-Bit TM1638 Key Display Module
8-Bit Digital LED Tube 8-Bit TM1638 Key Display Module
8-Bit Digital LED Tube 8-Bit TM1638 Key Display Module
8-Bit Digital LED Tube 8-Bit TM1638 Key Display Module

8-Bit Digital LED Tube 8-Bit TM1638 Key Display Module

Model NO.
USD 1.00-4.50 / piece
Minimum order quantity:
1 piece
Supply Ability:
10000 piece / Week
Country of Origin:
  • Place of Origin:CN;GUA
  • Display Function:Graphics
  • Screen Dimension:10.0cm*5.1cm
  • Brand Name:OEM ODM
  • Tube Chip Color:Red
  • Usage:Semi-outdoor
  • Model Number:TM1368
  • Certificate:RoHS
  • Weight:52g
  • Application:For DIY project
  • Digital tube:8
  • Key:8
  • Ports:Three IO ports
  • Material:PCB
Product Description

 LED display module 1.jpgLED display module 2.jpg


Features:100% brand new and high quality8 Bits, 8 keys, 8 LEDs, 8 digital tubes, common cathode LED digital tube.With TM1638 Chip, this module gather more than three common SCM peripheral circuits.The advantage is only three IO ports will be occupied when it drives.SCM doesn't need to work for scaning display and key scaning.It only need to read the relevant register to send display data or test button so it save MCU resources effectively.Keys are sensitive and display effectively.Specifications:The rated voltage: DC12VVoltage range: DC7.0 V-13.6 VThe input power: 0.24 AThe rated speed: 9500 R.P.MTemperature range:-10-70CTxpect life: 25C L10 when expected life 50000 hoursBearing structure: free maintenance dual ball bearingsRotation direction: the wind from stents place eduction, facing the rotor counter-clockwiseThe wiring way: + red-black signal: blue (blue line, the alarm line speed, it is necessary to pay attention to). Line about 20 cm longThe biggest air volume: 26.8 m / hThe electric motor protection : overload protection, wrong level protection and stall lock current protectionMinimum wind pressure : 0.. 120 PaNoise index : 41.9 dB (A)Material qualitative material: glass fiber reinforced plastic, PBT shell, PA bladesFunction explain: electronic reversing the rotor dc fans, complete electronic directional control componentsColor: Blue as picture showSize: 75mm x 48mm/2.95"x1.89"(inch) (approx)Net Weight: 24gPackage includes:1 x LED display module


Including the following resources:
1. 8 key
2. 8 LED common cathode
3. 8 a digital tube common cathode
Use TM1638 digital tube drive chip to drive common cathode LED digital tube
How to connect:
VCC GND 5V power supply, STB CLK DIO MCU I/O port
This module for the chip TM1638, set the above three kinds of single chip microcomputer common peripheral circuit, the biggest characteristic is to simply take microcontroller three IO mouth can drive, scanning display and key scan don't need microcontroller intervention, only need to register to display data related to reading and writing or testing buttons, save MCU resources. Buy the module provides an example program.
Wiring methods :
VCC GND connected 5V supply, STB CLK DIO connected microcontroller IO port.
If you need files, please click this button below.

Packaging & Shipping


  • Shipping: UPS / Fedex / DHL / TNT / EMS. Pls contact us directly which way your preferred.

           For the Countries & Regions where EMS cannot deliver, pls choose other shipping ways.

Company Information

Shenzhen Xiefengda Technology Co,.ltd specialize in electronic components such as ic , capcaitor , diode , fuse, transistor , resistor and so on .We have done this business over 10

years,having builded long-term cooperation relationships with lots of famous factories and agents all over the world . We have been committed to offering the broadest selection of in stock 

electronic components,as well as providing the lowest price at the fastest speed,whatever products you are sourcing. We possess strict quality control system as well as professional testing equipment and experienced electronics engineers.

All products will be tested and evaluated strictly before shipment.We offer the longest warranty period than any others,you can 100% return or exchange the goods within warranty .

We are your most professional and trustful choice. 

  • Is your parts new and original ?

Answer : Yes !Our parts could accept any kinds of testing , if there is any quality problems we will take responsible .

  • What is your warranty ?

Answer : Within 60 days after package have been received . 

  • How to pay the order ?

Answer : We could accept TT , Escrow , Paypal , Western Union and Alipay .After the order have been confirmed the invoice will be sent for reference .Then make payment as the way you like , as soon as the payment have been confirmed ,we will arrange shippment within 3 days .

  • Quality problems 

Answer : If there is any quality problems or questions , we could offer technical support or return service .

  •  What is your lead time ?

Answer :There are no lead times for in-stock products. Most of the parts could be shipped out within 3 days after payment have been confirmed.


  • May I have a sample for testing ? 


Answer :Yes ! Only to pay shipping cost ,free samples could be sent for testing .

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