Clap Acoustic Control Switch Suite Circuit Electronic PCB DIY Kits, US $230 – Picture 0

Clap Acoustic Control Switch Suite Circuit Electronic PCB DIY Kits, US $230 – Picture 1

Clap Acoustic Control Switch Suite Circuit Electronic Pcb Diy Kits

US $230

China, China
Jan 29th

Open on mobile:
QR code

Clap Switch Suite Clap Switch Suite 1. Suite Name: Clap switch kit. 2. Kit Model: PSK-1. 3. Operating Voltage: 5V. 4. PCB Size: 28 * 49mm. Working Principle: Q1 and Q2 composed of two audio amplifier circuit, the audio signal is accepted by the MK1 C1 is coupled to the base of Q1 pole, amplified and fed directly from the collector to the base of Q2 to a negative square wave at the collector of Q2, with to trigger the bistable circuit. R1, C1 circuit frequency response is limited to about 3kHz to high sensitivity range. The power is turned on, the state of the bistable circuit Q4 off, Q3 saturated, D3 does not shine. When MK1 received control signal, and a negative square wave output after two enlarged, negative spikes through D1 add to the base of Q3, the circuit rapidly flip, D3 is lit after differential processing. When MK1 again connected to the control signal, the circuit and flipped, D3 is off. Circuit board reserved for the terminal J1 access outside the control equipment and other devices through the J1 connector relay voice. (Then relays required at both ends of the relay coil anti and a diode) Package Including: 1Pcs Clap Acoustic Control Switch Suite Circuit Electronic PCB DIY Kits. Payment 1.We accept Paypal only. 2.Please confirm your ebay shipping address is exact after payment. 3.If your purchased is more than £30.00, please offer your phone number with shipping address. Delivery details 1.All item will be shipped by Airmail post within 1 business days. It takes approximately 15-25 days (USA ,CA,AU,UK,DE).other country 15-35 days. 2.Express by EMS ,it must add 25 USD shipping fee, it takes 5-10 workdays for delivery.If you need other Epxress(DHL,Fedex.UPS etc.),please contact us to talk about shipping fee. 3.Once you purchase, please DONOT leave negative, neutral feedback or open any case if you have not received item in 30 days, because we have mentioned the shipping time repeatedly. Contact us ???? 2 1.We offer retail and wholesale services. We can provide products in accordance with your requirements. If you have any questions or something to consult, please send us ebay message. 2.All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible. 3.Our aim is to provide Top Level Customer Service, Business hours are 9am to 6pm Beijing time (+8 GMT), Monday to Friday. Engineered for professional eBay sellers! On Nov-04-14 at 21:30:35 PST, seller added the following information: