Hc-sr04 Ultrasonic Module Distance Measuring Transducer Sensor For Arduino 5lots

US $110

ShenZhen, China
May 26th

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Luxury Men's Wrist Watch Sport Canvas Analog Stainless Case Steel Quartz Watch Description: Module main technical parameters: 1.Working Voltage : 5V(DC) 2.Static current: Less than 2mA. 3.Output signal: Electric frequency signal, high level 5V, low level 0V. 4.Sensor angle: Not more than 15 degrees. 5.Detection distance: 2cm-450cm. 6.High precision: Up to 0.3cm 7.Input trigger signal: 10us TTL impulse 8.Echo signal : output TTL PWL signal Mode of connection: 1.VCC 2.trig(T) 3.echo(R) 4.GND Use method: Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules. Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again. Module Working Principle: 1.Adopt IO trigger through supplying at least 10us sequence of high level signal. 2.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal. 3.If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance = (high level time * sound velocity (340M/S) / 2. Note : This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module Package Included: 5Pcs Modules 1. We Do Accept Paypal only. 2. eCheque will be held until cleared. 3. Great appreciate for prompt payment. Unpaid order will be opened an unpaid case by ebay after 14 days without receiving payment. 1.Orders will be processed and dispatched within 24-48 hours after payment is clear. 2.We only ship to confirmed eBay addresses. Your eBay address MUST MATCH your Shipping address. 3.Please note that estimated delivery time is depended on destination countries, and may subject to customs clearance process, and weather condition in your area. 1.Return is accepted within 30 days after the buyer's receiving the item. 2.If you are not completely satisfied with your purchase, you may return it to us for a prompt exchange or we will refund your payment. 3.Delivery fees will not be refunded.Please understand that shipping and handling fee is not refundable. Buyer is responsible for shipping costs incurred shipping products back.(Include your name, address, item, daytime telephone, how you paid, and if you are requesting a refund or exchange.) 4.After getting the returned item, we will refund the customer at the item's price ( excluding the shipping costs to and fro ). 1.We are always striving to offer our customers high product quality, reasonable prices, excellent customer service and a reliable credit standing. If you like our products, please add my eBay shop to your "My Favorites" list. 2.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us or feedback, so that we can satisfactorily address your concerns. 1.If you have any question, Please contact us by ebay message(not e-mail). we will reply to you within 24 hours. 2.We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. Please allow 24 business hours for us to response.