Acousto-Optic Control LED Energy-Saving Lamp DIY Kit Sound Control Light Control, US $7.74 – Picture 0

Acousto-Optic Control LED Energy-Saving Lamp DIY Kit Sound Control Light Control, US $7.74 – Picture 1

Acousto-Optic Control LED Energy-Saving Lamp DIY Kit Sound Control Light Control, US $7.74 – Picture 2

Acousto-Optic Control LED Energy-Saving Lamp DIY Kit Sound Control Light Control, US $7.74 – Picture 3

Acousto-Optic Control LED Energy-Saving Lamp DIY Kit Sound Control Light Control, US $7.74 – Picture 4

Acousto-Optic Control LED Energy-Saving Lamp DIY Kit Sound Control Light Control, US $7.74 – Picture 5

Acousto-optic Control Led Energy-saving Lamp Diy Kit Sound Control Light Control

US $7.74

Shenzhen, China
Jan 29th

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Recommendations For You 15 values 3296 trimmer pot resistor potentiometer White Solderless Prototype Breadboard 170 Tie-points white blue superbright bulb light LED 3mm DIP Universal Double Side PCB 5x7cm 1.6mm DIY Prototype Solder Sucker Desoldering Pump Tool Iron Desolver Desoldering Braid Solder Remover Wick TNI-U 5ft 2.5mm Visit my eBay Store:ChipWorld Product Name: Acousto-Optic Controlled LED Energy-Saving Lamps Kit DIY Kits new More Items In Our Store,Click Here! SKU: 1837 Parsts No. : Package: Brand: Quantity: 1 This LED consists of the functions of voice control, light control and Auto Delay. During the day time, it's controlled by light, but not the sound. Then it will not light even there is the sound. The switch is in a stand-by status when it's dark in the night. It will light once there is the sound and turn off automatically half a minute later. 1.Principle of Circuits This LED consists of the functions of voice control, light control and Auto Delay. During the day time, it's controlled by light, but not the sound. Then it will not light even there is the sound. The switch is in a stand-by status when it's dark in the night. It will light once there is the sound and turn off automatically half a minute later. The main component of the circuit is CD4011. The CD4011 consists of four NAND gate (VD1--VD4) which make the structure circuit more simplier and the operating more reliable. The sound signal will be obtained by MK1 and transferred to electric signal. The signal will be coupled at C4 and amplify at Q2. Amplifed signal will be sent to U1 PIN2. And the R7 and R8 are Q2's bias resistors. In order to let the voice/light contrl switch trun off during the day time, PR and related components form the electric circuit and R8 and PR form the the series dividing circuit. And during the night, the rate of PR is much higher, while PR ends are with voltage and U1 Pin 2 is high level. The Delay time is 2?R10*C5. Then the delay time can be adjusted to meet different need by adjusting the rate of R10 and C5. The signal will output a high level via U1 PIN 11 and let the SCR Q1 on when C5 is charged to a certain level. And the switch is off too. The power output to R10 only after C5 is fully charged. When the output reaches to a certain level, U1 PIN 11 outputs a low level and let the SCR Q1 off. And the switch is also off. At this time, the whole process of which the electronic switch turns from on to off is completed. Diode D1--D4 turn to a pulsating direct current after the bridge rectifier by alternating with 220V. And the voltage will be reduced at R2 and supply the power for circuit after C3's filtering. 2.Circuit Diagram 3.List of Components Item Order Item Name Specifications Code Item Order Item Name Specifications Code 01 Resistor 20K R4 R5 R6 13 Transistor 9014 Q2 02 91K R8 14 SCR 100-8 Q1 03 150K R2 15 Electret Microphone 9767 MK1 04 820K R1 R3 16 LDR 5528 PR(weld on the lamp board) 05 2M R10 17 IC CD4011 U1 06 3.3M R7 18 Wire Rod 4 4 07 Capacitance 104 C4 19 Spacer Support 1 1 08 22uF/25V C3 C5 20 Control PCB ?40 FR-4 09 4.7uF/400V C2 21 Lamp PCB ?56 FR-4 10 474J/400V C1 22 F5 strawhat LED White 45 11 Diode 1N4148 D5 13 Lamp housing ?60 1 12 1N4007 D1--D4 24 For more quantity, please contact me.(My skype: ada-yu2013) The Standard shipping we provide is non-regiested mail without a tracking. We provide free shipping with tracking number when your order is over $50. If your oder is below $50 and you need tracking, please contact me. click the right key to play the vedio blew Maybe you request LED Cycle Lamp Suite/DIY Kits/LED Flashlight/Electronic Production new DIY Kits Electronic Lucky Rotary Suite Production Parts And Components NEW LM3915/Level Indicating/Electronic Production Suite/DIY Kits new 16 Sound Box/16 Music Box/electronic production/DIY Kits new C51/AVR MCU development board DIY learning board kit Parts and components new $ 4.66 + free shipping $ 3.92 + free shipping $ 6.98 + free shipping $4.70 +free shipping $ 6.85 + free shipping Any problem, please contact us freely 1) We accept PayPal payment ONLY. inkFrog Analytics