5×5 rgb lpd6803-led matrix arduino controlled

a 5*5 rgb led matrix, made with arduino and lpd6803 based leds from adafruit.
with an pir sensor, it goes on if it detects movements and a ir distace sensor, 1 animation shows the distance you have from the sensor :).

because its beautiful and cool 😉

my spelling:
well, sorry if i make stupid spelling mistakes, i’m dyslectic and live in Holland

Step 1: How it works

how it works:
it uses an arduino uno that controls the lpd6803 chips in the rgb leds, so i can set each led individually. the arduino reads text files from an sd card, i’ve made a program(in c#) where you can make animations and store them so the arduino can read them.

Arduino RGB LED Matrix

Step 2: Materials needed

-arduino uno (other arduino’s probbably work, but i havent tested)
-25 rgb leds with lpd6803 controllers( the led’s i used arent being saled anymore 🙁 these are an newer version, but you will need to adapt the arduino code a bit)
-network shield(for sd card)(probably other shields with sd cards wil work)
-5v dc power supply min 1A

ir distance senso r (1 animation uses it)
pir senso r  (the matrix will go on if it detects motion(saves a bit of energy))
-2 pushbuttons

-soldering iron
-wire stripper
-some wires
-wooden board

Step 3: Part with wood

this is the part im bad at, but ill discribe what ive done:
iv’e put my led’s 5cm apart (horizontally and vertically) in a shiny wooden plate from an old kitchen.
the led’s from adafruit need 11mm holes(drill them carfully).

READ  Arduino from Scratch Digital Thermometer

at the bottom ive place my arduino with double-sided thape, and left of it a big hole for the pir sensor, the ir distance sensor is placed on top(now it looks like it has eyes 😉 )

then put the led’s in the holes beginning top left(frot vieuw) going from left to right down(see picture)

Step 4: The electronics

for the leds

led’s clock –> 6
led’s data –> 7
pir sensor –> A5 (if you have no pir sensor, connect it to the 5v+)
ir distance sensor –>A4 (if you don’t have a distance sensor juslt leave it open)

gnd –> Button 1 –> A0
gnd –> Button 2 –> A1

sd: (the default of the ethernet shield)
mosi –> 11
miso –> 12
clk –> 13
cs –> 4
Arduino RGB LED Matrix Circuit
ir distance senor +                       —–> all to arduino’s 5v+

ir distance sensor –
pir –                                                     —–> all to arduino’s gnd
negative from 5v power supply
led’s –
button –

led’s + —-> positive from 5v power supply

all black cables are soldered together as central gnd
all red cables(exept one) are soldered together as sensor 5v+ (from arduino)
all yellow cables are signal cables(watch it are 5 yellows so don’t mix them up!!)
you also find mine animations here, just put them on the sd card

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