4 Digit 7 SEG LED DISPLAY

Common anode 4-digit red LED display module with colon for time display.

I2c interface for reduced pin usage. Uses TM1637 driver chip, only requires 2 signal wires to control 4 7-segment displays.

4-digit common anode LED display, 8 segment adjustable grayscale.

Works with 3.3V to 5V power. 4-M2 screw holes for convenient installation.

Specification Power voltage: 3.3~5.5V, Current (at 5V): 30~80mA.

4-connections: GND, VCC, DIO, CLK, GND for ground wire, DIO for data output, CLK for time clock signal.

Red LED emission color.

Comes with 4 position female to female Dupont cable.

The litle bit I have found out about this is listed below, if you have a library that would be useful, drop me a note James@QKits.com

Here is a note from Jim,

The first command initializes the display and sets the brightness. This is done by sending the%1000abbb value where the a bit activates (if set to 1) or deactivates (if set to 0) the display and the bbb bits control the brightness (with 000 being the darkest and 111 being the brightest).
The second command allows controlling a single digit of the display. It requires sending 3 bytes to the display: 0x44 %110000aa X where the aa bits in the second byte are used to select the position of the digit to control while X is the value to be displayed.

The last command is used to control multiple digits and can consists of up to 6 bytes. Typically you want use all the digits in which case you send the following bytes to the display –0x40 0xC0 W X Y Z. The first byte is the command identifier the second byte tells the display to start at the first position and W X Y Z are the values to be displayed on subsequent positions (again in the standard 7 segment encoding).
Here are is a short summary of the commands: