Ks0424 keyestudio micro:bit Passive Buzzer Module: Difference between revisions

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[[image:Ks0424-1.png|thumb|300px|right|keyestudio Passive Buzzer Module For BBC micro:bit]]
 
[[image:Ks0423-1.png|thumb|300px|right|keyestudio Microphone Module For BBC micro:bit]]


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==Description==
==Description==
This keyestudio microphone module is fully compatible with micro:bit control board. It is a sound detection device, an analog signal output device.<br>
This keyestudio passive buzzer is fully compatible with micro:bit control board.<br>
It is mainly composed of a MIC head, a LM358D chip and a potentiometer.<br>
It is mainly composed of a passive buzzer without oscillation circuit. It cannot be actuated by itself, but by external pulse frequencies. <br>
When the microphone detects sound, and converts it into a voltage signal; then amplifies it through the LM358D chip.<br>
Different frequencies produce different sounds. Even can code the melody of a song.<br>
The potentiometer is used to adjust the signal amplification.<br>
There are total 6 rings on the module. Note that two G rings, two V rings and two S rings are connected. G for ground; V for 3V; S for signal pin(0 1 2).<br>
 
There are total 6 rings on the module. Note that two G rings, two V rings and two S rings are separately connected. G for ground; V for 3V; S for signal pin(0 1 2).<br>
We can work out the sound volume by reading the analog value of signal end.<br>
When using, connect the module to micro:bit control board using Crocodile clip line.
When using, connect the module to micro:bit control board using Crocodile clip line.
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== Technical Parameters ==
== Technical Parameters ==
* Working voltage: DC 3.0-3.3V
* Working voltage: DC 3.0-3.3V
* Output signal: Analog signal
* Output signal: Digital signal (square wave)
* Dimensions: 31mm*27mm*4mm
* Dimensions: 31mm*27mm*4.5mm
* Weight: 2g
* Weight: 2.3g
* Environmental attributes: ROHS
* Environmental attributes: ROHS


<br>[[File:Ks0423-2.png|450px|frameless|thumb]]<br>
<br>[[File:Ks0424-2.png|450px|frameless|thumb]]<br>


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<br>
== Connection Diagram==
== Connection Diagram==
[[File:Ks0423-3.png|500px|frameless|thumb]]<br>
[[File:Ks0424-3.png|500px|frameless|thumb]]<br>


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<br>
== Source Code ==
== Source Code ==
[[File:Ks0423-4.png|600px|frameless|thumb]]<br>
<br>
<br>
Code 1： <br>
<br>[[File:Ks0424-4.png|600px|frameless|thumb]]<br>
<br>
Code 2： <br>
<br>[[File:Ks0424-4.png|600px|frameless|thumb]]<br>


== Example Result ==
Connect well the module, then send the source code to the micro:bit main board.
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You should see the LED matrix show the rolling dot. Or you can open the serial monitor of Arduino IDE to see the analog value of current sound volume.
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The louder the sound, the greater the analog value is.
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<span style=color:red> Pay close attention to: you can turn the potentiometer on the module to adjust the sound magnification, which also will enlarge the analog value.<br>
<span style=color:red> Pay close attention to: you can turn the potentiometer on the module to adjust the sound magnification, which also will enlarge the analog value.<br>
<br>[[File:Ks0423-5.png|600px|frameless|thumb]]<br>
== Example Result ==
Connect well the module, then send the source code to the micro:bit main board.<br>
If send the code 1, the buzzer will alternately make two sounds.<br>
If send the code 2, the buzzer will play a song of Ode To Joy.
<br>[[File:Ks0423-5.png|600px|frameless|thumb]]<br>
<br>[[File:Ks0423-5.png|600px|frameless|thumb]]<br>


Revision as of 16:31, 4 April 2019


keyestudio Passive Buzzer Module For BBC micro:bit


Description

This keyestudio passive buzzer is fully compatible with micro:bit control board.
It is mainly composed of a passive buzzer without oscillation circuit. It cannot be actuated by itself, but by external pulse frequencies.
Different frequencies produce different sounds. Even can code the melody of a song.
There are total 6 rings on the module. Note that two G rings, two V rings and two S rings are connected. G for ground; V for 3V; S for signal pin(0 1 2).
When using, connect the module to micro:bit control board using Crocodile clip line.

Technical Parameters

  • Working voltage: DC 3.0-3.3V
  • Output signal: Digital signal (square wave)
  • Dimensions: 31mm*27mm*4.5mm
  • Weight: 2.3g
  • Environmental attributes: ROHS


thumb


Connection Diagram

thumb


Source Code


Code 1：

thumb

Code 2：

thumb


Pay close attention to: you can turn the potentiometer on the module to adjust the sound magnification, which also will enlarge the analog value.

thumb

Example Result

Connect well the module, then send the source code to the micro:bit main board.
If send the code 1, the buzzer will alternately make two sounds.
If send the code 2, the buzzer will play a song of Ode To Joy.
thumb


Resources

Download all relevant info. below:



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