“Microduino-Buzzer”的版本间的差异
第4行: | 第4行: | ||
| | | | ||
[[File: Microduino-BUZZER.jpg|400px|thumb|right| Microduino-Buzzer]] | [[File: Microduino-BUZZER.jpg|400px|thumb|right| Microduino-Buzzer]] | ||
− | + | Microduino-Buzzer是无源蜂鸣器,和电磁扬声器一样,需要高低变化不同频率的电压才能发声。频率越高则音调越高。 | |
− | Microduino-Buzzer is passive | + | Microduino-Buzzer is a passive buzzer. Like a magnetic speaker, it needs voltage with different frequency so that it can make sound accordingly. The pitch becomes louder when the frequency gets higher. |
2015年11月1日 (日) 04:39的版本
Language | English |
---|
Microduino-Buzzer是无源蜂鸣器,和电磁扬声器一样,需要高低变化不同频率的电压才能发声。频率越高则音调越高。 Microduino-Buzzer is a passive buzzer. Like a magnetic speaker, it needs voltage with different frequency so that it can make sound accordingly. The pitch becomes louder when the frequency gets higher.
Feature
Specification
Document
DevelopmentIt can be used to make various kinds of sound through the buzzer. Application
#define buzzer_pin 6
void setup()
{
pinMode(buzzer_pin,OUTPUT);
}
void loop()
{
for(int i=200;i<=800;i++) //Increase the frequency from 200HZ to 800HZ circularly.
{
tone(buzzer_pin,i); //Output frequency in the port.
delay(5); //The frequency lasts for 5ms.
}
delay(1000); //The highest frequency lasts for 1s.
for(int i=800;i>=200;i--)
{
tone(buzzer_pin,i);
delay(10); //The frequency lasts 10ms.
}
}
PurchaseHistoryImage
|