9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND, US $7.78 – Picture 0

9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND, US $7.78 – Picture 1

9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND, US $7.78 – Picture 2

9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND, US $7.78 – Picture 3

9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND, US $7.78 – Picture 4

9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND, US $7.78 – Picture 5

9-15v Voice Control Level Indicating Voice Indicator Module Diy Kits Ind

US $7.78

China, China
Jun 9th

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9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits IND} } DESCRIPTION 9-15V Voice Control Level Indicating Voice Indicator Module DIY Kits Features - The circuit is mainly composed by Power Circuit, Audio Amplifier Circuit, Frequency Dividing Circuit and LED Driver Circuit. - Power Circuit: The power output voltage is 9V--15V. D1 can avoid the demage of three terminal regulator when the power polarity is connected in a wrong way. After the C4's filtering, L7806 three terminal regulator will provide the whole circuit with a stable voltage of 6V. - Audio Amplifier Circuit: Electret microphone MK1 transfers the obtained sound to electric signal which will be amplifed twice by Q1 and Q2. At this time, UR1 can adjust the size of Q2 signal in order to adjust the sensitivity of the whole circuit. - Frequency Dividing Circuit:Three frequency dividing circuits is added to indicate the electrical level on the different frequency, as it's featured with three sections of LED indicator in a seperate way. VR2?VR3 and VR4 are used for adjusting the sensitivity of LED indicator on the different frequency. The sound signal from three different frequency can be distinguished according to the different capability of C6?C10 and C11. Q4?Q5 and Q18 collectors can obtain three different frequency and the voltages after dividing and amplifying by diode and transistor. The level of voltage depends on the size of the sound from outside. - LED Driver Circuit:There are 9 pieces of 1N4148 diode in each frequency. If the sound is louder, the higher voltage will be obtained by Q4?Q5 and Q18 connector and more 1N4148 start work. Then more LEDs can light. Specifications - Power Voltage:9V--15V - PCB Size:160mm x 42mm - PCB Material: 1.2mm thickness, high quality FR4-A Fiberglass panels Package Includes - 1x PCB board - 11x 5mm LED white color blue light - 11x 5mm LED white color red light - 11x 5mm LED white color green light - 3x 9012 Transistor - 38x 9013 Transistor - 33x 1N4148 iode - 1x 1N4007 iode - 33x 560Ω resistance - 8x 2K-2.2K resistance - 14x 4.7K resistance - 12x 10K resistance - 8x 33K resistance - 12x 47K resistance - 1x 220K resistance - 3x 100K resistance - 4x 50K Blue&white potentiometer - 10x 4.7UF apacitance - 2x 220UF 25V capacitance - 5x 104 ceramic capacitor - 2x 103 eramic capacitor - 1x 101 eramic capacitor - 1x 222 ceramic capacitor - 1x LM7806 - 1x XH2.54-2P Cable Terminal - 1x XH2.54-2P Power wire - 1x Microphone (with feet) } PAYMENT We accept PayPal only. } SHIPPING Your purchase will be shipped by airmail via China Post within 2 business days after your payment is cleared. International shipping takes time and your patience is highly appreciated. Please contact us if you have any question and we will reply to you within 1 business day. We will NOT be responsible for any delay during delivery including customs postage checking, strike, force majeure, etc. You should expect to pay duties & taxes, if there is any, charged by the government in your respective country. } RETURNS Refund or replacement request is available within 1 week after parcel is received. Please return the item as the same condition as received. Your feedback and DSRs are extremely important to us, so please kindly contact us if there is any problem, and let us know how we can earn your 5-star rating before submitting your scores! On Sep-18-15 at 23:39:22 PDT, seller added the following information:

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Country/Region of Manufacture	China
Brand	WHATWEARS
MPN	6060934052203