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Description
Supply voltage:3-5.5V
Board size:3.4*2.5cm
Product Overview:
After the successful production of this kit and power on, when the microphone does not receive sound, the light does not light up. With the sound of music or other sounds, the five LED lights follow the rhythm of the sound, that is, the speed of the sound, and flash. If placed near the sound system, you can feel the combination of the melody of the sound and the flicker of light, allowing the light to dance with the music
Circuit Principle:
The circuit of this kit consists of a power supply circuit, microphone amplification circuit, and LED luminous indicator circuit. The power supply is input by J1, and C1 is the power filter capacitor. MIC1 converts sound signals into electrical signals, and the specific conversion process can be described in detail. The intensity of the generated electrical signal is determined by the size of the sound, so this is a variable electrical signal, similar to AC voltage. As we all know, capacitors have the function of passing AC resistance direct current, so this electrical signal is coupled to the Q1 base through C2 for amplification. The amplified electrical signal from the Q1 collector is sent to the Q2 base, where Q2 drives the LED to emit light. The louder the sound, the stronger the generated electrical signal, and the higher the brightness of the LED
Component List:
Resistance 4.7K, four rings: yellow purple red golden, five rings: yellow purple black brown 2
5MM Blue LED 5
Electrolytic capacitor 1uf 2
Transistor 9014 2
Resistance 1M, four rings: brown black green golden, five rings: brown black black yellow brown 1
MIC 1
2P pin arrangement+2P DuPont cable 1
PCB board 1
Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shipment.
We can accept customized package to meet different requirements:
1.Every item will separately pack into plastic bag,component,module can be packed in anti static bag.
2.Some fragile products such as the display screen can be packed in bubble bag.
3.Some large machines can be packed in wooden cases.
4.We can label JH code or client's code on package so that customers can check easily after receive goods.
Voice Controlled Melody Light Kit
SKU : YXS1250 Brand :
Style:
Voice controlled LED melody light kit(loose parts)
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