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# System prepended metadata

title: Panneau LED

---

# Panneau LED
## Objectif 
>Afficher l'heure sur le panneau led
![](https://i.imgur.com/W3glpbk.jpg)


## 
### Montage: 

![](https://i.imgur.com/Bq5CxDM.png)
>Avec ce montage nous pouvons lier notre arduino avec notre panneau led . Apres on connecte notr'e arduino a notre pc pour lui donner un code  
### Code:
>#include "SPI.h"
#include "DMD419.h"
#include "TimerOne.h"
#include "Arial_black_16.h"<arial_black_16.h>
// you can remove the fonts if unused
#include "SystemFont5x7.h"
#define DISPLAYS_ACROSS 1
#define DISPLAYS_DOWN 1
/* change these values if you have more than one DMD connected */
DMD419 dmd(DISPLAYS_ACROSS,DISPLAYS_DOWN);
void ScanDMD()
{
 dmd.scanDisplayBySPI();
}
void setup()
{
VMA419
V. 02 – 14/12/2017 6 ©Velleman nv
 Timer1.initialize( 5000 );
/*period in microseconds to call ScanDMD. Anything longer than 5000 (5ms)
and you can see flicker.*/
 Timer1.attachInterrupt( ScanDMD );
/*attach the Timer1 interrupt to ScanDMD which goes to
dmd.scanDisplayBySPI()*/
 dmd.clearScreen( true );
/* true is normal (all pixels off), false is negative (all pixels on) */
}
# 
### Sources:
>https://www.velleman.eu/downloads/29/vma419_a4v02.pdf