1 mobil robototexnikani o’qitish bo’yicha metodika 2021

MATRITSALI LED 
8X8
Kerakli komponentlar:
    Arduino UNO R3 tekshiruvi;
    prototip tayyorlash uchun taxta;
    LED RGB matritsasi 8 × 8;
    74HC595 mikrosxemasi - 2 dona;
    jamperlar

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LED matritsasini Arduino-ga ulash uchun biz 2 ta 
74HC595 mikrosxemasining kaskadli ulanishidan 
foydalanamiz. Ushbu ulanish bilan birinchi registrdan 
darajalar kaskaddagi keyingi registrga suriladi. 
Birinchi registrning QH ‘pinini DS piniga (MOSI) 
ulashingiz kerak. Ulanish diagrammasi surat. 22.2.
Surat 22.1: Matritsa pinlarining sxemasi rasm 
Surat 22.2: LED matritsasini ulash diagrammasi

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70
Matritsa tasvirini shakllantirish uchun har bir ustun 
uchun dinamik ko’rsatkichdan foydalanamiz. Har 
3 soniyada biz matritsaning shaklini o’zgartiramiz. 
Shakl ma’lumotlari [] qatorida saqlanadi. 
// SPI kutubxonasini ulash
#include
int ss_pin=8; // пин SS
int pos=0; //
int offfigure=0; // ko’rsatish uchun joriy shakl
unsigned long millis1=0;
// ko’rsatish uchun shakl ma’lumotlari bilan qator
byte figure[2][8]={
{B10011001,B10011001,B10011001,B10000001,B1
0000001,B10011001,B10011001,B10011001},
{B10101010,B10101010,B10101010,B10101010,B1
0101010,B10101010,B10101010,B10101010}
};
void setup()
{
SPI.begin();
// SS pinini chiqish sifatida sozlang
pinMode(ss_pin, OUTPUT);
}
void loop()
{
digitalWrite(ss_pin, LOW);
// ustunlar (столбцы)
SPI.transfer(B00000001<
// torlar (строки)
SPI.transfer(figure[offfigure][pos]);
digitalWrite(ss_pin,HIGH); // ma’lumotlarni 
xulosaga chiqarish74HC595
delay(1);

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pos=(pos+1)%8;
if(millis()-millis1>3000) // 3 soniyadan 
so’ng - yangi ko’rsatkich
{
offfigure=(offfigure+1)%2;
millis1=millis();
}
}