8x8 LED MATRIX DISPLAY | ARDUINO | BLUETOOTH CONTROL

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Introduction: 8x8 LED MATRIX DISPLAY | ARDUINO | BLUETOOTH CONTROL

In this tutorial i show how to build a 8 x 8 LED matrix using an Arduino .

DO COMMENT WHAT YOU THINK ABOUT THIS INSTRUCTABLE,SO THAT I CAN IMPROVE IN MY FURTHER INSTRUCTABLES

have a look at the video tutorial for a better understanding of the entire tutorial.

PARTS NEEDED:

☻LEDS( 64 PCs)

JUMPER WIRES

☻CARDBOARD PIECE(16 CM BY 16CM)

ARDUINO UNO

LAPTOP OR PC (FOR UPLOADING CODE TO ARDUINO

POWER SUPPLY ( I USED A POWER BANK TO SAVE BATTERIES)

Step 1: ASSEMBLE THE CIRCUIT USING CARDBOARD SHELL

PUT IN ALL THE 64 LEDs IN THE CARDBOARD PC AS SHOWN

Step 2: SOLDER THE LEDS AS PER THE CIRCUIT DIAGRAM

FIRST SOLDER THE POSITIVE TERMINALS OF THE LEDS ROW WISE

NEXTBENDTHE NEGATIVE TERMINALS A LITTLE BIT AND SOLDER THEM COLUMN WISE (AS SHOWN) ACCORDINGLY.

EDIT: JUST ADDED FEW EXTRA IMAGES TO UNDERSTAND THE SOLDERING PART A LITTLE BETTER

Step 3: SOLDER JUMPER WIRES AND POP THE CIRCUIT OUT

SOLDER 8 JUMPER WIRES IN THE ROWS AND 8 JUMPER WIRES IN THE COLUMN .

FINALLY POP THE CIRCUIT OUT OF THE CARDBOARD SHELL

Step 4: ARDUINO

CONNECT THE AURDUINO WITH THE LED MATRIX

CONNECT EACH OF THE COLUMN TO PIN 2,3,4,5,6,7,8,9 RESPECTIVELY

ALSO,CONNECT EACH OF THE ROW TO PIN 10,11,12,13,14,15,16,17 RESPECTIVELY.

FINALLY UPLOAD THE FINAL CODE TO THE AURDUINO THROUGH THE CONNECTING WIRE

To download the final code go to the below link :

https://drive.google.com/open?id=1rQIDh56OnBVF2rqVtHd0UK7_qQ4WNjcZ

Step 5: CONNECT BLUETOOTH

CONNECT THE BLUETOOTH DEVICE HC-05 TO THE AURDUINO:

connect rx of bluetooth to tx of arduino

connect tx of bluetooth to rx of arduino

vcc to +5v

gnd to gnd

Step 6: Download Android Application

download arduino bluetooth controller from playstore

Step 7: Let's Play With the App

click on connect and select your bluetooth device .


congratulations!! you have a working led matrix display controlled via bluetooth

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  • I did it in two step...-magichtg

    magichtg made it!

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15 Comments

Very nice. I voted for all 3 categories. What is the spacing of the LEDs?
Will the HC-05 work with the iPhone?

Ya i guess app is available in the app store

Nicely done. If you could put 3 or 4 of them together you could make a nice scrolling display.

yeah nice idea...would try to do that soon :)

Can we not use 8x8 matrix LEDs instead of assembling 64 leads in the matrix form? It makes things easy. I hope your code should still work.

YOU MAY BUT THE CODE WON'T WORK I GUESS...ALSO THIS IS MORE FUN TO ASSEMBLE :)