\n\n \n\ncode: for Arduino uon , Arduino Nano\n\nconst int buzzerPin = 9;\nvoid setup(){\npinMode(buzzerPin, OUTPUT);\n}\n\nvoid loop(){\nanalogWrite(buzzerPin, 127);\ndelay(500);\nanalogWrite(buzzerPin,0);\ndelay(500);\n}\n\n
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\n\n \n\ncode: for Arduino uon , Arduino Nano\n\nconst int buzzerPin = 9;\nvoid setup(){\npinMode(buzzerPin, OUTPUT);\n}\n\nvoid loop(){\nanalogWrite(buzzerPin, 127);\ndelay(500);\nanalogWrite(buzzerPin,0);\ndelay(500);\n}\n\n