Laboratoriya ishi №13. Yetti segmentli bitta raqamli ko‘rsatkich. Laboratoriya ishining maqsadi

Laboratoriyaning amaliy qismi.
Ushbu laboratoriyada biz 4-bitli Arduino-ga asoslangan 7-segmentli LED-massivni ko‘rib chiqamiz. Biz yetti segmentli displeyni Shift Register 74HC595N yordamida boshqaramiz.



Modelni yig‘ish uchun bizga quyidagilar kerak:

• 
  1 × Arduino platasi
  
• 
  1 × USB kabeli
  
• 
  1 × Panel (doska)
  
• 
  1 × Shift registri 74HC595N
  
• 
  1 × 4 raqamli 7 segmentli ko‘rsatkich
  
• 
  4 × qarshilik (200 Ω / 220 Ω)
  
• 
  ulash uchun similar
  

Modelning Arduinoga ulanish sxemasi:


Ushbu model uchun quyidagi dastur mos keladi:
int tDelay = 500;
int latchPin = 9;
int clockPin = 10;
int dataPin = 8;


byte leds = 0;
void updateShiftRegister()
{
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, LSBFIRST, leds);
digitalWrite(latchPin, HIGH);
}
void updateShiftRegister2()
{
digitalWrite(latchPin, HIGH);
shiftOut(dataPin, clockPin, LSBFIRST, leds);
digitalWrite(latchPin, LOW);
}


void setup()
{
pinMode(latchPin, OUTPUT);
pinMode(dataPin, OUTPUT);
pinMode(clockPin, OUTPUT);
Serial.begin(9600);
}
void loop()
{
leds = 0;
updateShiftRegister();
for (int i = 0; i < 8; i+=2)
{
delay(200);
bitSet(leds, i);
updateShiftRegister();

}


for (int i = 0; i < 8; i+=2)
{
bitClear(leds, i);
updateShiftRegister2();
delay(200);
}
}
Xulosa
Men bu laboratoriya ishini bajarish davomida Loyihalarda 74HC595 smenali registr yordamida 4 bitli matritsani boshqarishni o‘rgandim.