TM1637 4 Bits Digital Tube LED Display Module With Clock Display for Arduino

DESCRIPTION

TM1637 4 Bits Digital Tube LED Display Module is a 12-foot clock with 4 points of positive digital (0.36 inches) display module driver IC TM1637, only two signal lines can make SCM four 8-segment LED.

 

TM1637 DISPLAY is preferred module that can be interfaced to any system using only two pins. This is the main reason the module is preferred over other module. The characters to be displayed on the screen can be sent to module using only two pins. With that we can save many I/O pins of system which can be used for other important tasks.

 

Another main reason TM1637 display is preferred is because of its low cost. Although there are other display modules present in the market they cost more. The module design is robust so it can sustain in tough environments and still can perform its function for a long time. The module consumes low power and can be installed in mobile applications.

 

Features :

• Display device is 4-digit yang red digital tube
• Digital tube 8-level grayscale adjustable
• Control interface level can be 5V or 3.3V
• 4 M2 screw positioning holes for easy installation
• Control interface A total of 4 pins (GND, VCC, DIO, CLK), GND is ground, VCC is the power supply, DIO is the data input and output pin, CLK is the clock signal pin;
• Digital Tube: 4-digit common anode with a 0.36-inch digital tube with a score point, highlighted in red;
• Positioning hole: 4 M2 screw positioning holes, the hole diameter is 2.2 mm, which makes the module easy to install and position, and realize the module combination;

Pinout Description :

• GND    –    GND
• Vcc       –     5V
• DIO     –      D2
• CLK     –     D3

Package Includes :

• • 1 x 4 Bits Digital Tube LED Display Module.

• SPECIFICATIONS

Project	Minimum value	Typical value	Maximum	Unit
Voltage	3.3	5	5.5	VDC
Current (@5V)	-	30	80	mA
Size	42X24X12			Mm
Weight	8			g

 

• APPLICATIONS

How to use TM1637 Display Module?

 

As mentioned earlier the module communication can only be done using the two pins ‘DIO’ and ’CLK’ respectively. The data is sent to the module or received from the module though these two pins. So the characters to be displayed are sent in the form of serial data through this interface. A typical circuit diagram of display module interface to a controller is shown below.

 

 

 

The module can work on +5V regulated power and any higher voltage may lead to permanent damage. The interface is established as shown in figure. All you need to do is connect DIO and CLK to any of GPIO (General Purpose Input Output) pins of controller and establish serial data exchange through programming.

 

This serial data transmission between controller and module is really complex. So we will be using libraries which are written for the module to help with data transmission. All you need to do is download these libraries which are available in various websites and call them in application programs. Once the header file is included, the controller performs the communication by itself and required display characters will be sent to module.

 

The TM1637 IC on the module receives the serial data sent by the controller. The chip drives the 4 display segments according to the code. The segments light up to display the desired character.

 

Applications

• Power units
• Time display
• Stop watch and counters
• Robotics
• Servers
• Computer Peripherals
• GPS
• Utility power meters