Electronic Kit Bluetooth Speaker Music Spectrum Soldering P

1. Seven Musical Scale. It can simulate 7 scales do,re,mi,fa,sol,la,si.
2. Three tones. It can switch select Treble, Alto and Bass by left on.
3. Strum/Play Mode. Users can play music according to the music score at StrumModeor play the built-in music at Play Mode.
4. Scale LED Indicator.the corresponding LED indicator will indicate when playing to change the scale.
5. DIY Hand Soldering. Great for electronics hobbyists, beginners, school and home education.

Product Name:HU-013 Laser Electronic Piano DIY Kit
Work Voltage:DC 5V
Musical Scale:do,re,mi,fa,sol,la,si
Tones:Treble, Alto, Bass
Play Mode:StrumMode and Play Mode
Built-in music:2 songs
Control Type:Laser transmitters and photoresistor receiver
Speaker:8ohm 0.5W
Laser power:Less than 5mW
Work Temperature:-20℃-85℃
Work Humidity:5%-85%RH
Working Principle:
When the light beam is irradiated on the photoresistor, the resistance value is very small, the single-chip microcomputer recognizes the voltage as a low level and does not emit a tone.
When a certain beam is blocked, the resistance value of the photoresistor becomes larger, and the single-chip microcomputer recognizes the voltage as a high level, drives the speaker to emit the corresponding tone through the triode and light the LED.
7 Harp DIY Kit:
The harp electronics kit exploits properties of photoresistors to play melodies with light beams instead of real s.
When the beam s are plucked, the corresponding LED lights will light up, and the middle, low, high three tones can be adjusted by pressing the ons.
Parts need to be soldering by yourself
Colour:As Shown
Material:plastic
Size:(Installed):170x153x25mm

Package Contents:
1 * Electronic Building Kit

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

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