{"id":669,"date":"2025-05-09T12:44:36","date_gmt":"2025-05-09T09:44:36","guid":{"rendered":"https:\/\/nikiforovnikitaportfolio.wordpress.com\/?page_id=669"},"modified":"2025-11-13T15:03:22","modified_gmt":"2025-11-13T13:03:22","slug":"kaste-6-buzzer","status":"publish","type":"page","link":"https:\/\/nikitanikiforov24.thkit.ee\/wp\/?page_id=669","title":{"rendered":"Kaste 6. Buzzer"},"content":{"rendered":"\n

T\u00f6\u00f6 protsess:<\/strong><\/p>\n\n\n\n

Kood juhib buzzer, mis m\u00e4ngib meloodiat antud nootide p\u00f5hjal. Noodid ja nende r\u00fctm on m\u00e4\u00e4ratletud notes<\/strong> \u0438 beats<\/strong> massiividega.<\/p>\n\n\n\n

Kasutatud:<\/strong><\/p>\n\n\n\n

1x Arduino UNO
1x Buzzer
4x Juhtmed<\/p>\n\n\n\n

Kood:<\/strong><\/p>\n\n\n

\nconst int buzzerPin = 13;\n\/\/ pikkus on nootide ja pausite koguste summa\nconst int songLength = 18;\nchar notes[] = "cdfda ag cdfdg gf "; \/\/ t\u00e4hed on noodid ja t\u00fchik on paus\n\/\/ R\u00fctmi seadistamine.\nint beats[] = {1,1,1,1,1,1,4,4,2,1,1,1,1,1,1,4,4,2};\n\/\/ "tempo" meloodia kiirus. Kui v\u00e4iksem tempo_ siis suurem kiirus.\nint tempo = 150;\n\nvoid setup() \n{\n  pinMode(buzzerPin, OUTPUT);\n}\n\nvoid loop() \n{\n  int i, duration;\n  for (i = 0; i < songLength; i++)\n  {\n    duration = beats[i] * tempo; \n    if (notes[i] == ' ')          \/\/ kui noot puudub\n    {\n      delay(duration);          \n    }\n    else                         \n\n    {\n      tone(buzzerPin, frequency(notes[i]), duration);\n      delay(duration);          \n    }\n    delay(tempo\/10);              \/\/ v\u00e4ike paus nootide vahel\n  }\n  while(true){}\n}\nint frequency(char note) \n{\n  int i;\n  const int numNotes = 8;  \/\/ nootide kogus\n  char names[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C' };\n  int frequencies[] = {262, 294, 330, 349, 392, 440, 494, 523};\n  \/\/ kui noot on olemas, siis tagastame selle tiheduse \n  for (i = 0; i < numNotes; i++)  \n  {\n    if (names[i] == note)       \n    {\n      return(frequencies[i]);    \n    }\n  }\n  return(0); \n}\n<\/pre><\/div>\n\n\n
Foto:<\/strong><\/p>\n\n\n\n
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Niiskuse- ja temperatuuriandur<\/h2>\n\n\n\n
T\u00f6\u00f6 protsess:<\/strong><\/p>\n\n\n\n
DHT11 v\u00f5i DHT22 on temperatuuri ja niiskuse andur Arduino jaoks, see loeb andmeid andurilt ja kuvab need jadamonitoril.<\/p>\n\n\n\n
Kasutatud:<\/strong><\/p>\n\n\n\n
DHT11 v\u00f5i DHT22 temperatuuri- ja \u00f5huniiskuse andur
Arduino UNO
DHT sensor library by Adafruit<\/p>\n\n\n\n
Foto:<\/strong><\/p>\n\n\n\n
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V\u00e4ike Alarm S\u00fcsteem<\/h2>\n\n\n\n
T\u00f6\u00f6 protsess:<\/strong><\/p>\n\n\n\n
Kood m\u00f5\u00f5dab andurite abil temperatuuri, valgustaset ja niiskust, kuvab andmed LCD-ekraanil ja aktiveerib helisignaali, kui temperatuur on liiga k\u00f5rge v\u00f5i valgustase liiga madal. Samuti muudab kuvatavat temperatuuri Celsiuse ja Fahrenheiti vahel ning kuvab ekraanil naeratava n\u00e4o s\u00f5ltuvalt temperatuurist (kurb, kui temperatuur on alla 25, ja \u00f5nnelik, kui \u00fcle 25).<\/p>\n\n\n\n
Kasutatud:<\/strong>
1x Arduino UNO
1x Fototaksis
1x Temperatuuriandur
1x LED 16×2
1x Buzzer
1x Niiskusandur (joonisel pinnase niiskusandur)
1x Potentsiomeeter
1x 220om taksi
1x 10K om taksi
27x Juhtmed<\/p>\n\n\n\n
Kood:<\/strong><\/p>\n\n\n
\n#include <LiquidCrystal.h>\n\nLiquidCrystal lcd(12, 11, 5, 4, 3, 2);\n\nconst int tempPin = A1;\nconst int lightPin = A0;\nconst int humidityPin = A2;\nconst int buzzerPin = 8;\n\nfloat temperature;\nfloat voltage;\nfloat degreesF;\nint lightLevel;\nint humidityLevel;\n\nunsigned long previousMillis = 0;\nconst long interval = 1000;\nunsigned long lastEmojiShowTime = 0;\nconst long emojiInterval = 10000;\nunsigned long lastDegreeSwitch = 0;\nbool fDegrees = false;\nbool potato = true;\nbool lemon = false;\nbool minecraft_end = false;\nbool dog = true;\n\nbool danger = false;\nbool lastDangerState = false;\n\nvoid setup() {\n  lcd.begin(16, 2);\n  pinMode(tempPin, INPUT);\n  pinMode(lightPin, INPUT);\n  pinMode(humidityPin, INPUT);\n  pinMode(buzzerPin, OUTPUT);\n}\n\nvoid loop() {\n  unsigned long currentMillis = millis();\n\n  if (currentMillis - previousMillis >= interval) {\n    previousMillis = currentMillis;\n\n    lightLevel = analogRead(lightPin);\n    voltage = getVoltage(tempPin);\n    temperature = (voltage - 0.5) * 100.0;\n    degreesF = temperature * (9.0 \/ 5.0) + 32.0;\n    humidityLevel = analogRead(humidityPin);\n\n    danger = false;\n    if (temperature > 30 || lightLevel < 100) {\n      danger = true;\n    }\n\n    lcd.clear();\n    lcd.setCursor(0, 0);\n    lcd.print("Temp: ");\n    if (currentMillis - lastDegreeSwitch > 500) {\n      lastDegreeSwitch = currentMillis;\n      fDegrees = !fDegrees;\n    }\n    if (fDegrees) {\n      lcd.print(degreesF, 1);\n      lcd.print(" F");\n    } else {\n      lcd.print(temperature, 1);\n      lcd.print(" C");\n    }\n\n    lcd.setCursor(0, 1);\n    lcd.print("L:");\n    lcd.print(1023 - lightLevel);\n    lcd.print(" H:");\n    lcd.print(humidityLevel \/ 10);\n\n    if (danger && !lastDangerState) {\n      playAlarm();\n    }\n\n    lastDangerState = danger;\n  }\n}\n\nfloat getVoltage(int pin) {\n  return (analogRead(pin) * 0.004882814);\n}\n\nvoid playAlarm() {\n  for (int i = 0; i < 3; i++) {\n    tone(buzzerPin, 1000, 200);\n    delay(250);\n  }\n  noTone(buzzerPin);\n}\n<\/pre><\/div>\n\n\n
Foto:<\/strong><\/p>\n\n\n\n
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Video:<\/strong><\/p>\n\n\n\n
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