Mavzu: ultra tovushli masafo datchigi kerakli elemnlar

MAVZU: ULTRA TOVUSHLI MASAFO DATCHIGI

KERAKLI ELEMNLAR

• HC-SR04 ultra tovushli masofa datchigi

HC-SR04 ultra tovushli masofa datchigi

HC-SR04 ultratovushli masofa o‘lchagichning texnik ko‘rsatgichlari: 

• HC-SR04 ultratovushli masofa o‘lchagichning texnik ko‘rsatgichlari: 
• O‘lchanuvchi oraliq - 1 dan 300 sm gacha; 
• NISBIY xatoligi - 0,3 sm; 
• ko‘rish burchagi - < 15°; 
• ma’nba kuchlanishi - 5 V.
• Datchik 4 ta standart chiqishga ega 2,54 mm: 
• VCC - +5 V manba; 
• Trig (T) – kirish signalining oyoqchasi;
• Echo (R) - chiqish signalining oyoqchasi;
• GND - yer.

Aborotlarni olish uchun harakatlar ketma-ketligi quyidagicha:

• Trig karnayi orqali ultratovush tolqinlari yuboriladi
• Echo mikrafonchasi orqali qaytgan tovush tulqini qabul qilinadi
• Tovush ni urilip qaytish uchun ketgan vaqt hisoblanadi,
• Masofa esa Tovush tezligini ketgan vaqtga kupaytirish orqali topiladi
• S=V*t/2 FORMULA ORQALI TOPILADI V =331m/s

Arduno kodi

• #include // includes the LiquidCrystal Library LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LCD object. Parameters: (rs, enable, d4, d5, d6, d7) const int trigPin = 9; const int echoPin = 10; long duration; int distanceCm, distanceInch; void setup() { lcd.begin(16,2); // Initializes the interface to the LCD screen, and specifies the dimensions (width and height) of the display pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); } void loop() { digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distanceCm= duration*0.034/2; distanceInch = duration*0.0133/2; lcd.setCursor(0,0); // Sets the location at which subsequent text written to the LCD will be displayed lcd.print("Distance: "); // Prints string "Distance" on the LCD lcd.print(distanceCm); // Prints the distance value from the sensor lcd.print(" cm"); delay(10); lcd.setCursor(0,1); lcd.print("Distance: "); lcd.print(distanceInch); lcd.print(" inch"); delay(10); }