1pcxmicrophone The Module Voice Whistle Switch Output High And Low Diy

US $8.99

Hongkong, Hong Kong
Jan 29th

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1pcxMicrophone the module Voice whistle switch output high and low DIY Description Product Description Module Description 1 can detect the sound intensity of the surrounding environment, use Note: This sensor is only the presence or absence of the identification of sound (principle according vibration) does not recognize the voice size or specific frequency sound 2 adjustable sensitivity adjust the digital potentiometer (shown in blue) 3 Operating voltage 3.3V-5V 5 output form of digital switching outputs (0 and 1 high-low) A fixed bolt hole for easy installation 7 small plates PCB size: 3.4cm * 1.6cm Module interface specification (4-wire) 1 VCC external 3.3V-5V voltage (can be directly connected to the 5v microcontroller and 3.3v microcontroller) 2 GND external GND 3 DO-board digital output interface (0 and 1) Instructions for use 1 sound module is most sensitive to environmental sound intensity, generally used to detect the intensity of the ambient sound. 2 module in the intensity of the environmental sounds reach the threshold value is set, DO port outputs a high level, when the external environment sound intensity exceeds the threshold value is set, the module D0 output is low; 3 small plates digital outputs D0 can be directly connected with the microcontroller, microcontroller to detect high and low, and thus to detect the sound of the environment; 4 board digital output DO OUR relay module can directly drive, which can be composed of a voice-activated switch; package including: 1pcxMicrophone the module Voice whistle switch output high and low DIY Payment Policy We can only accept Paypal by now and thanks for your understanding We apologize that we cannot accept other payment methods, such as cheque or postal orders Shipping & Handling We Ship to Worldwide, but Italy, Nigeria, Brazil will take long delivery time . Before buying, Please make sure your address is correct. Or not, please correct it before payment Ship to worldwide from SINGAPORE within 12-24 hours after payment completed received, Pls.contact me for the the tracking number if you need it. we advise shipping by DHL or EMS,and we have gave a discount for you,you can received it in 4-9 business days. it takes about 15-30days usually if shipping by Singapore/CHina/Hong Kong post air mail Import duties, taxes and charges are not included in the item price or shipping charges. Buyers are responsible for these charges. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. We cannot ship on weekends and we do not offer Saturday, Sunday or holiday delivery. All our items will be shipped to buyer's PayPal address, please confirm your address on PayPal before you bid Return & Refund Policy: We absolutely stand behind our products. We also offer a 14 day money back guarantee should you be unhappy for any reason whatsoever. We will refund the entire cost of the item upon receipt of the returned item, not including the shipping and insurance charges. Our aim is 100% customer satisfaction! the feedback is very important for us, pls leave me a positive feedback if you are satisfied with our service and our items,or pls contact with me if there are some problem with our items.we will solve it asap. Negative feedback doesn't resolve problems, good communication does. Please contact me if there is anything and I will resolve it for you. Once your item arrives in satisfactory condition, please leave feedback for us. Our automatic system will do the same for you Attention Intellectual Property Rights Owner We endeavor to source genuine products from our suppliers. However, if you do feel that our products may infringe your trademark, patent or other intellectual property rights, please contact us first. We will respond to you and address your issue immediately.