Grove Speaker Datasheet by Seeed Technology Co., Ltd

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Grove - Speaker
The Grove- Speaker is a module which consists of power amplification and voice
outputs. The loudness can be adjusted by the on-board potentiometer. With different
input frequencies, the loud-speaker generates different tones. Coding the music into
arduino, DIY your own music box!
Features
• Volume Adjustable
• Grove Interface
Tip
More details about Grove modules please refer to Grove System
Specifications
Item
Min
Typical
Max
Unit
Working Voltage
4.0
5.0
5.5
VDC
Voltage Gain
-
-
46
db
Band Width
-
-
20
KHz
.@&®Q E??? filfizfi$ (Hz) fléffilfiflms) 1 261.6255653 1911.128216 1.5 277.182631 1803.864832 2 293.6647679 1702.621678 2.5 311.1269837 1607.060866 3 329.6275569 1516.863471 4 349.2282314 1431.728466 4.5 369.9944227 1351.371722 5 391.995436 1275.525055 5.5 415.3046976 1203.935334 6 440 1136.363636 6.5 466.1637615 1072.584446 7 493.8833013 1012.384907
Platforms Supported
Arduino
BeagleBone
Wio
LinkIt ONE
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.
Usage
Play with Arduino
The speaker can emit a variety of sounds like a car horn, doorbell and ignition . The
different sounds are based on the frequency of the input signal.
You can supply different frequency signal to this module with Arduino. Arduino
generates these signal via PWM or even digital write and delay.Here we are going to
show you how to generate these signals using delay(), the speaker sound bass 1~7.
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/*macro definition of Speaker pin*/
#define SPEAKER 3
int BassTab[]={1911,1702,1516,1431,1275,1136,1012};//bass 1~7
void setup()
{
pinInit();
}
void loop()
{
/*sound bass 1~7*/
for(int note_index=0;note_index<7;note_index++)
{
sound(note_index);
delay(500);
}
}
void pinInit()
{
pinMode(SPEAKER,OUTPUT);
digitalWrite(SPEAKER,LOW);
}
void sound(uint8_t note_index)
{
for(int i=0;i<100;i++)
{
digitalWrite(SPEAKER,HIGH);
delayMicroseconds(BassTab[note_index]);
digitalWrite(SPEAKER,LOW);
delayMicroseconds(BassTab[note_index]);
}
}
Note
Due to the influence of the capacitance, the module can only output the bass signal, and the
treble is unable to emit.
Play with Codecraft
Hardware
Step 1. Connect Grove - Speaker to port D3 in 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.
De‘ay ms a SpeakerPlN De‘ay ms a SpeakerPlN VDe‘ay ms a I SpeakerPlN VDe‘ay ms w ‘50 Deway ms ® [El De‘ay ms ® play lone play lone play lone play lone play lone play lone play lone
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 Speaker making a DO to SI sound.
Resources
• Grove - Speaker Eagle File
• How to generate different tone with MCU
• Grove_-_Speaker_v1.0_brd.pdf
• Grove_-_Speaker_v1.0_sch.pdf
• LM386 Low Voltage Audio Power Amplifier Datasheet
• CodeCraft Code
Tech Support
Please submit any technical issue into our forum or drop mail to techsupport@seeed.cc.
http://wiki.seeedstudio.com/Grove-Speaker//5-24-19