Alvin: Created page with "== Introduction == The Buzzer module has a piezo buzzer as the main component. It can be connected to an analog pulse-width modulation output to generate various tones and ef..."

2016-12-13T02:22:56Z

Created page with "== Introduction == The Buzzer module has a piezo buzzer as the main component. It can be connected to an analog pulse-width modulation output to generate various tones and ef..."

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== Introduction ==

The Buzzer module has a piezo buzzer as the main component. It can be connected to an analog pulse-width modulation output to generate various tones and effects.

[[File:Buzzer D1.jpg|640px]]

[[File:Buzzer D1 2.jpg|640px]]

[[File:Buzzer D1 3.jpg|640px]]

[[File:Buzzer D1 4.jpg|640px]]

== Wiring & Running ==

The module is connected to the base shield J1:

Buzzer Signal --> LinkNode D1 G0

Power on and download the simple code, we can hear a ticking sound coming from the buzzer.

[[File:Buzzer D1 5.png|640px]]

== Simple Code ==

const int beep_pin = 0;

void setup() {
// put your setup code here, to run once:
pinMode(beep_pin,OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
unsigned int hz = 1800;
unsigned int time_ms = 800;
buzzer(hz,time_ms);
delay(1500);
}
void buzzer (int hz,int time)
{
if(hz <= 500)
{
for(int i = 0; i < (time/(1000/hz)); i ++)
{
digitalWrite(beep_pin,HIGH);
delay(500/hz);
digitalWrite(beep_pin,LOW);
delay(500/hz);
}
}
else
{
for(int i = 0; i < ((time*1000)/(1000000/hz)); i ++)
{
digitalWrite(beep_pin,HIGH);
delayMicroseconds(500000/hz);
digitalWrite(beep_pin,LOW);
delayMicroseconds(500000/hz);
}
}
}

LinkNode Buzzer Module - Revision history

Alvin: Created page with "== Introduction == The Buzzer module has a piezo buzzer as the main component. It can be connected to an analog pulse-width modulation output to generate various tones and ef..."