.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
Lucky Turntable Circuit Board Kit
$0.31
Desktop Rotating LED Gyro DIY Kit
$0.21
Electronic Lucky Turntable DIY Kit
$0.12
Electronic Dice LED DIY Kit
$0.09
Game Machine DIY Kit
$5.23
Voice Activated LED Glasses Kit
$2.74
Game Console DIY Kit
$5.23
16 Music Box DIY Kit
$0.25
Touch Button Random Dice
$2.91
Lucky Turntable DIY Kit
$0.69
Laser Electronic Harp Kit
$4.82
Mobile Photosensitive Firefly Robot Kit
$2.07
Solar Energy Mini Toy Car
$0.72
Electronic Wind Chime LED Light Kit
$0.38
NE555 Ding Dong Digital Doorbell Kit
$0.52
LED Swing Wind Chime Kit
$0.39
NE555 CD4017 5mm Red LEDs ICSK057A Electronic Fun DIY Kit
$0.85
Lucky Wheel DIY Kit
$0.32
16 Music Box DIY Kit
$0.96
Lucky Rafflec Game DIY Kit
$2.12