The Grove - Buzzer module has a piezo buzzer as the main component. The piezo can be connected to digital outputs, and will emit a tone when the output is HIGH. Alternatively, it can be connected to an analog pulse-width modulation output to generate various tones and effects.
Version¶
| Product Version | Changes | Released Date |
|---|---|---|
| Grove-Buzzer V1.0 | Initial | Nov 25 2010 |
| Grove-Buzzer V1.1 | Add S9013 Transistor | May 30 2014 |
Features¶
- Easy to use piezoelectric buzzer
- Uses Standard 4-pin Grove Cables to connect to other Grove modules such as - Grove Power Modules and Grove - Base Shield
Tip
More details about Grove modules please refer to Grove System
Specifications¶
| Items | Specification |
|---|---|
| Operating Voltage | 3.3V/5V |
| Sound Output | ≥85dB |
| Resonant Frequency | 2300±300Hz |
Platforms Supported¶
| Arduino | Raspberry Pi | |||
|---|---|---|---|---|
 |
 |
 |
 |
 |
Caution
The platforms mentioned above as supported is/are an indication of the module's software or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library.
Getting Started¶
Play With Arduino¶
Hardware¶
- Step 1. Prepare the below stuffs:
| Seeeduino V4.2 | Base Shield | Grove - Buzzer |
|---|---|---|
 |
 |
 |
| Get ONE Now | Get ONE Now | Get ONE Now |
- Step 2. Connect Grove-Buzzer to port D6 of Grove-Base Shield.
- Step 3. Plug Grove - Base Shield into Seeeduino.
- Step 4. Connect Seeeduino to PC through a USB cable.
Note
If we don't have Grove Base Shield, We also can directly connect Grove-buzzer to Seeeduino as below.
| Seeeduino | Grove-Buzzer |
|---|---|
| 5V | Red |
| GND | Black |
| Not Conencted | White |
| D6 | Yellow |
Software¶
- Step 1. Copy the code into Arduino IDE and upload.
void setup()
{
pinMode(6, OUTPUT);
}
void loop()
{
digitalWrite(6, HIGH);
delay(1000);
digitalWrite(6, LOW);
delay(1000);
}
- Step 2. We will hear the buzzer on and off.
Play with Codecraft¶
Hardware¶
Step 1. Connect Grove - Buzzer to port D6 of a Base Shield.
Step 2. Plug the Base Shield to your Seeeduino/Arduino.
Step 3. Link Seeeduino/Arduino to your PC via an USB cable.
Software¶
Step 1. Open Codecraft, add Arduino support, and drag a main procedure to working area.
Note
If this is your first time using Codecraft, see also Guide for Codecraft using Arduino.
Step 2. Drag blocks as picture below or open the cdc file which can be downloaded at the end of this page.
Upload the program to your Arduino/Seeeduino.
Success
When the code finishes uploaded, you will hear the buzzer sound intermittently.
Play With Raspberry Pi (With Grove Base Hat for Raspberry Pi)¶
Hardware¶
- Step 1. Things used in this project:
| Raspberry pi | Grove Base Hat for RasPi | Grove - Buzzer |
|---|---|---|
 |
 |
|
| Get ONE Now | Get ONE Now | Get ONE Now |
- Step 2. Plug the Grove Base Hat into Raspberry Pi.
- Step 3. Connect the Grove Buzzer to PWM port of the Base Hat.
- Step 4. Connect the Raspberry Pi to PC through USB cable.
Software¶
- Step 1. Follow Setting Software to configure the development environment.
- Step 2. Download the source file by cloning the grove.py library.
cd ~
git clone https://github.com/Seeed-Studio/grove.py
- Step 3. Excute below command to run the code.
cd grove.py/grove
python grove_pwm_buzzer.py
Following is the grove_led.py code.
Success
If everything goes well, the buzzer will ring a few times and then stop, the program will automatically exit.
Play With Raspberry Pi (with GrovePi_Plus)¶
Hardware¶
- Step 1. Prepare the below stuffs:
| Raspberry pi | GrovePi_Plus | Grove - Buzzer |
|---|---|---|
|
 |
|
| Get ONE Now | Get ONE Now | Get ONE Now |
- Step 2. Plug the GrovePi_Plus into Raspberry.
- Step 3. Connect Grove-Buzzer to D8 port of GrovePi_Plus.
- Step 4. Connect the Raspberry to PC through USB cable.
Software¶
- Step 1. Follow Setting Software to configure the development environment.
- Step 2. Git clone the Github repository.
cd ~
git clone https://github.com/DexterInd/GrovePi.git
cd ~/GrovePi/Software/Python
python grove_buzzer.py
Here is the grove_buzzer.py code.
import time
import grovepi
# Connect the Grove Buzzer to digital port D8
# SIG,NC,VCC,GND
buzzer = 8
grovepi.pinMode(buzzer,"OUTPUT")
while True:
try:
# Buzz for 1 second
grovepi.digitalWrite(buzzer,1)
print ('start')
time.sleep(1)
# Stop buzzing for 1 second and repeat
grovepi.digitalWrite(buzzer,0)
print ('stop')
time.sleep(1)
except KeyboardInterrupt:
grovepi.digitalWrite(buzzer,0)
break
except IOError:
print ("Error")
- Step 4. We will hear the buzzer on and off.
pi@raspberrypi:~/GrovePi/Software/Python $ python grove_buzzer.py
start
stop
start
stop
Play With TI LaunchPad¶
Hardware¶
- This example shows how to use the Grove buzzer module to play melodies. It sends a square wave of the appropriate frequency to the buzzer, generating the corresponding tone.
Software¶
/*
Buzzer
The example use a buzzer to play melodies. It sends a square wave of the
appropriate frequency to the buzzer, generating the corresponding tone.
The circuit:
* Buzzer attached to pin39 (J14 plug on Grove Base BoosterPack)
* one side pin (either one) to ground
* the other side pin to VCC
* LED anode (long leg) attached to RED_LED
* LED cathode (short leg) attached to ground
* Note:
This example code is in the public domain.
https://www.seeedstudio.com/wiki/index.php?title=GROVE_-_Starter_Kit_v1.1b#Grove_-_Buzzer
*/
/* Macro Define */
#define BUZZER_PIN 39 /* sig pin of the buzzer */
int length = 15; /* the number of notes */
char notes[] = "ccggaagffeeddc ";
int beats[] = { 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 4 };
int tempo = 300;
void setup()
{
/* set buzzer pin as output */
pinMode(BUZZER_PIN, OUTPUT);
}
void loop()
{
for(int i = 0; i < length; i++) {
if(notes[i] == ' ') {
delay(beats[i] * tempo);
} else {
playNote(notes[i], beats[i] * tempo);
}
delay(tempo / 2); /* delay between notes */
}
}
/* play tone */
void playTone(int tone, int duration) {
for (long i = 0; i < duration * 1000L; i += tone * 2) {
digitalWrite(BUZZER_PIN, HIGH);
delayMicroseconds(tone);
digitalWrite(BUZZER_PIN, LOW);
delayMicroseconds(tone);
}
}
void playNote(char note, int duration) {
char names[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C' };
int tones[] = { 1915, 1700, 1519, 1432, 1275, 1136, 1014, 956 };
// play the tone corresponding to the note name
for (int i = 0; i < 8; i++) {
if (names[i] == note) {
playTone(tones[i], duration);
}
}
}
