Light Glasses Soldering Practice Kit Sound Activated LED Eyeglasses DIY Electronics Kit for School Learning Project,B

Light Glasses Soldering Practice Kit Sound Activated LED Eyeglasses DIY Electronics Kit for School Learning Project,B Popis

1. Voice controlled LED glasses, which can control LED flashing through speech or music
2. Transparent shell, mesh design, visible from the inside to the outside
3. The LED the circuit board emits light towards the outside and will not illuminate the eyes
4. The product sensitivity is adjustable, and the light flashes from the middle to both sides
5. Assemble it yourself and enjoy the fun of DIY

Product Name:Voice LED Luminous Glasses Kit
Power supply method:2 x 23A batteries (included in the shipment)
Working voltage:12V
Working current:15mA
Number of lamp beads:50
It's DIY kits, needs to finish by yourself.
Circuit description:
KA2284 is an integrated circuit used for 5-point LED level indication. Input different voltages, you can output different lighting states of 5 LEDs, and the LEDs will turn and off in sequence. The number of LED lights is commonly used as an indicator of amplifier output or ambient sound level, that is, the louder the sound, the more LED lights , the smaller the sound, and the less LED lights .
This circuit consists of two parts: a transistor amplification circuit and a level indication circuit. The microphone sends the received sound through C3 to the transistor Q1 for amplification and then to the signal input terminal (8 pins) of KA2284. KA2284 drives 5 sets of light emitting diodes to display and off. The circuit power supply is 12V, and R1-R5 is the current limiting resistor of the LED, with every 5 LED connected in series. The left and right sides of the glasses are mirrored with 5 sets of light emitting diodes. Adjusting RP1 can adjust the sound sensing sensitivity.
Color:B:Green Light
Material:ABS

Package Contents:
1 * glass frame
1 * circuit board
1 set * accessories