|Package Size||11cm x 11cm x 11cm (4.33in x 4.33in x 4.33in)|
|Package Weight||0.1kg (0.22lb.)|
note! ! Below $ 7 $ no tracking number
Sound Module / whistle module / voice switch / Robot Accessories / Smart car / CN07
Product Description A module description 1 can detect the intensity of ambient sound, using Note: This sensor can identify the presence or absence (in accordance with the principles of vibration) size does not recognize the sound of a specific frequency of sound or sound 2 adjustable sensitivity (shown in blue digital potentiometer adjustment) 3 Operating Voltage 3.3V-5V 5 output in the form of digital switching output (0 and 1 high and low) 6 has a fixed bolt hole for easy installation 7 small PCB board size: 3.4cm * 1.6cm Two module interface specification (4-wire) 1 VCC 3.3V-5V external voltage (can be directly connected to the 5v and 3.3v microcontroller MCU) 2 GND External GND 3 DO small board digital output interface (0 and 1) Three instructions 1 sound module sound intensity most sensitive to the environment, is generally used to detect the intensity of ambient sound. 2 Module ambient sound intensity not reach the threshold value, DO port output high, when the ambient sound level exceeds the set threshold, the module D0 output low level; 3 small board digital output D0 can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting a sound environment; 4 small board digital output DO OUR relay module can directly drive, which can be composed of a voice-activated switch; ...
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payment: we only accept the payment by credit card,western union. We apologize that we cannot accept other payment methods, such as cheque or postal orders . Shipping: 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 Hong Kong within 12-24 hours after payment completed received, and will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand. 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 CHina/Hong Kong post air mail Feedback: the feedback is very important for us, pls leave me a 5 stars 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. Warranty and Return: 12-months Warranty for defective items (excluding items damaged and/or misused after receipt). Buy with confidence Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received. Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials. Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable. Return shipping is to be paid by the Buyer. ABOUT US: we have much more products, pls contact us if you need.welcome to wholesale. MUCH THANKS!!
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