Arduino Forum

Using Arduino => Displays => Topic started by: landscape on Jun 13, 2018, 03:04 pm

Title: 8x8 LED display stranger things...
Post by: landscape on Jun 13, 2018, 03:04 pm
Hi everyone,
im trying to simply plug a LED display 8x8 but my display screen doesn't display my byte array.

i've tried to use a basic digitalWrite but my screen doesn't display my datas correctly...
then i've tried tu use LedControl library but i've the same render.

i've plugged the screen like this :
VCC -> 5v
GND -> GND...
CLK -> pin 10
MOSI -> pin 12 ( i think MOSI is lie dataIn )
CE -> pin 8

as you can see on the attachment with two different cards i've got the same effect when i try to draw this byte array :

byte icks[8] = { B00000000,
                B00000000,
                B00000000,
                B00000000,
                B00000000,
                B00000000,
                B00000000,
                B00000001};


Perhaps my display screen is not correctly plugged...
Or perhaps the display doesn't work...

this is the display led 8x8 matrix model i've ordered :
https://www.amazon.ca/ILS-Matrix-Screen-Arduino-Raspberry/dp/B07911X4Z4

What am doing wrong ?
this my second experience with Arduino and its never work so i can't explain the why...
is it possible that the new ordered material is disrespectful?

Please tell me what you think because I do not see why the material I ordered would not work ...
Title: Re: 8x8 LED display stranger things...
Post by: marco_c on Jun 14, 2018, 12:18 am
There are no attachments.

How did you know what to do to drive the display?