.16修改(3).png)
.16修改(3).png)
Login
Browse history
Description
Board size:70*80mm
Function Description:
This circuit can control the cyclic flashing of 18 LEDs and music playback based on the intensity of ambient light. In the circuit, the photosensitive resistor serves as a photosensitive component, and the stronger the light, the lower the resistance value of the photosensitive resistor. If all red LEDs are used, DC 3V can be used. If the colors are different, DC 4.5-5V voltage can be used
Circuit Description:
J1 can change the control mode. When short circuiting J1's 1, 3, 2, and 4 respectively, the stronger the light, the higher the series voltage on R7. This voltage is applied to the reverse input terminal of voltage comparator IC1A. When the voltage exceeds the same phase input terminal voltage, IC1A outputs a low level, transistor 8550 conducts, music chip and 18 LED cycling circuits start to sound and flicker when powered on. J2 supplies power to the horn switch, and removing the short-circuit cap of J2 makes it in a silent state, The transistor V5 is used for power amplification, and the audio signal of the music chip is amplified by V5; Drive the passive buzzer to sound; On the contrary, if pins 3, 5, and 4, 6 of J1 are respectively short circuited, the darker the light, and the higher the series voltage on resistor R7. This changes to dark control. Other connections for J1 are not defined
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.
Light-controlled Music Heart-shaped Llight Kit
SKU : YXS1631 Brand :
Style：
.Kit(10).jpg)
Kit
Kit+3*AA cases
Kit+3*AA cases+battery .jpg)
PCB board (without components)
You May Also Like
16 Music Box DIY Kit
$0.25
Lucky Turntable DIY Kit
$0.68
Lucky Wheel DIY Kit
$0.31
Electronic Dice LED DIY Kit
$0.09
Game Machine DIY Kit
$5.19
Four Person Preemptive Answer Machine DIY Kit
$0.80
Three-person Voting Device DIY Kit
$0.15
Lucky Turntable Circuit Board Kit
$0.31
Lucky Rafflec Game DIY Kit
$2.10
NE555 8 Channel Digital Responder Kit
$1.32
Rotating Gyroscope LED Kit
$0.20
Music Butterfly Shaped Light DIY Kit
$1.69
Voice Controlled Rhythm Flashing Light Kit
$0.20
Quadruped Bionic Smart Robot Dog
$7.83
NE555 Electronic Piano Welding Kit
$0.19
Voice Controlled LED Luminous Glasses Kit
$2.71
Lucky Wheel Sweepstakes Game Kit
$2.06
Mobile Photosensitive Firefly Robot Kit
$2.05
Ferris Wheel Model DIY Kit
$10.05
Light controlled Flowing Water Light Kit
$1.33