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Free shipping 1pcs Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino Samples Best prices

60 % of buyers enjoyed this product!
In stock
Sale Price: US $0.70
45 days Money back
45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
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Guarantees: On-time Delivery 60 days

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Product Description

1, the performance of this module is stable and precise measure of distance. And comparable foreign SRF05, SRF02 Ultrasonic Ranging Module. Module precision, blind spots (2cm) super close, stable distance measurement is strong based on this product successfully to market! This module is completely modest capacity of GH-311 anti-theft module

Two main technical parameters:
1: Voltage: DC5V 2: Quiescent Current: <2mA
3: level output: the output of the high-5V 4: level: the end of 0V
5: Induction Angle: not more than 15 degrees: detection range: 2cm-450cm

7: High precision: up to 0.3cm

Panel wiring, VCC, trig \’s (control side), the echo (receiving end), out (empty feet), GND

Note: TRIP-pin internal pull-up 10K resistor, down TRIP microcontroller IO port pin, and then to a 10us pulse signal.

OUT pin for this module as the switch output pin when the anti-theft module, ranging modules do not use this foot!

Note: The module should be inserted Fortunately, the circuit board re-energized, and avoid the high malfunction, if they have re-energized before they solve.

This module can be provided ranging program: C51, PIC18F877 microcontroller Yoshitatsu three MCU test reference.

3 the module URF04 works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) a signal to return to a high IO output, high duration of the ultrasonic time from launch to return.

Test distance = (time high * speed of sound (340M / S)) / 2;

This product is simple to use, and a Control Port high above a 10US, you can wait for the high output at the receiving port. An output can open the timer can be read when this port goes low timer value for the time ranging be calculated distance. such a continuous cycle of measurement, you move to measure the value we can achieve ~ ~~

The module works:

(1) IO trigger ranging to at least 10us high signal;

(2) module automatically sends eight 40kHz square wave, automatically detect whether a signal return;

(3) the signal to return, a high IO output, high duration of

Ultrasonic time from launch to return. Test distance = (time high * speed of sound (340M / S)) / 2; Payment: 1.We accept payment that aliexpress can accept, We apologize that we cannot accept other payment methods, such as cheque or postal orders . 2.All major credit cards are accepted,and we received it in 24 hours 3.Payment must be received within 10 business days of auction closing Shipping: 1. We ship to worldwide,per order have a track number 2.Primary competitive advantage:Asia/Sonth America/Eastern Europe/Mid East/Africa/Western Europe,and so on 3.Before buying,please make sure your aliexpress and alibaba address is correct.Or not,please correct it before payment. 4.If goods less than 1.5Kg,we ship by China Post Air Mail or by HK Post Air Mail 5.Ship to worldwide within 12-24 hours after payment completed received,arrive at most destinations All orders will be shipped via the International Airmail service unless specially agreed by seller. Important duties: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility You need to check this with your customs office to find out what these additional costs will be prior to buying Before signing the package, please check to make sure the product is not damaged during the transportation and whether the product is in it. If not, please refuse to sign it. You will be considered receiving the right product as long as you signed the parcel Feedback: If you have some problem with the color, size, quality or other problem, please contact us freely before you give us a neutral/negative feedback. We will leave POSITIVE FEEDBACK as soon as the Aliexpress allow us to leave feedback. We warmly like to give you satisfy solution. If you love our item, warmly expected your five stars feedback. We will work harder to give you a satisfy service. Since your feedback is very important for us, we sincerely invite you to leave positive feedback for us, thank you very much!

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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