Introduction: 7 Segment Hack

Picture of 7 Segment Hack

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.

Picture of 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.

Picture of 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

Picture of 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.

Comments

pedro147 (author)2017-10-18

https://www.instructables.com/id/Different-methods-of-driving-7-Segment-LED-display/

illumation_ (author)2017-08-19

This is NOT a hack, change the title please.

kag432 (author)2014-08-14

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.

dreamzrush (author)kag4322014-08-15

Hey, thats nice. I would like to see your project too. :)

seamster (author)2014-08-14

Welcome to the site! Nice project, thanks for sharing!

dreamzrush (author)seamster2014-08-15

Thankyou :)

mquiring1 (author)2014-08-14

You don't Need some ohmic-resistor???

dreamzrush (author)mquiring12014-08-15

Hey, I didn't need them in this module. KLQ563SY. I think I would need them when i'm soldering them on a pcb. :)

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