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Hey, This can be a fun project for the weekend.

You can hack it to your own messages too...

This step to step guide can help you make it quickly.

It requires only 4 parts and the project is complete within other few steps

Step 1: Join the 7 Segment and Probe Wires to the Bread Board.

This image is self explanatory. You can make these connections by placing the 7 segment right in the middle of the board so that the ravine which flows between the board helps you to distinct connections with the 6 pins on both sides of the display.

Step 2: Make Connections With Your Arduino Now.

Connect 2,3,4,5th pins of UNO to the pinout of the display as COM1, COM2, COM3, COM4.

Also connect the remaining 6 to 13th pins of the UNO to the A,B,...,G and dp(data pointer) of the pinout of the display.

The pinout is in the next image.

Step 3: LOGIC

This logic will help to decipher any circuit like the name printed on it. Like i have used CA display.

More explanation is shown of the logic in the image.

Step 4: The Final Code and Output.

You need to put these files in one folder. The 7_segment.ino is the code file while segmentchar.h is the library file.

I pulled a similar display out of an alarm clock planning to do the same thing only to find out it was controlled over SPI.
<p>Hey, thats nice. I would like to see your project too. :)</p>
<p>Welcome to the site! Nice project, thanks for sharing!</p>
<p>Thankyou :)</p>
You don't Need some ohmic-resistor???
<p>Hey, I didn't need them in this module. KLQ563SY. I think I would need them when i'm soldering them on a pcb. :)</p>

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