This kit includes three HR-SR04 ultrasonic modules. As the ultrasonic has strong directivity, slow energy consumption and far spread distance in the media, so it is commonly used in the measurement of distance, such as range finder and position measuring instrument. Using ultrasonic is more rapid, convenient, simple to calculate and more easier to achieve real-time control, so it has also been widely used in the development of mobile robots.
Ultrasonic detector module can provide 2cm-450cm non-contact sensing distance, and its ranging accuracy is up to 3mm, very good to meet the normal requirements. The module includes an ultrasonic transmitter and receiver as well as the corresponding control circuit.
Working Voltage: 0.5V(DC)
Working Current: 15mA
Detecting Range: 2-450cm
Detecting Angle: 15 degrees
Input Trigger Pulse: 10us TTL Level
Output Echo Signal: output TTL level signal (HIGH), proportional to range.
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Shipping: Please allow about 5-10 business days for delivery. For delivery to Alaska or Hawaii, please allow 10-15 days for delivery. For delivery to PO Boxes in Alaska, Hawaii, US Territories and APO/FPO addresses, allow three weeks for delivery.
Backorders: All backordered items will be shipped via Standard Delivery service at no additional charge.
Returns Policy: You may return new, unworn or unused products within thirty (30) days of delivery for a full refund of the cost of the goods, or an exchange if preferred.
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