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HC-SR04 Ultrasonic Sensor Module ultrasonic distance measurer Module for Arduino, Free Shipping, Wholesale/Retail

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Sale Price: US $0.99
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HC-SR04 Ultrasonic Sensor Distance Measuring Module for PICAXE Microcontroller Arduino UNO
Description:

This module has stable performance, accurate measurement of the distance.Can compare with foreign SRF05, SRF02 ultrasonic ranging module Module has high precision, blind spot (2cm) super close, stable range is effective according to the product to market successfully!The module is fully compatible with the GH-311 security module.

The main technical parameters:

Voltage: DC5V

Static current: less than 2mA
Level output: high-5V
Level output: the end of 0V
Sensor angle: not more than 15 degrees
Detection distance: 2cm-450cm
High precision: up to 0.3cmConnection: VCC, trig (control side), echo (receiving end), GNDUsage:

A control port send a high level of more than 10US, can wait for the high level output at the receiving port.When output can open the timer,When the port goes low we can read the timer value,This is the location of time, can figure out the distance. So the test cycle, you can reach your mobile measurement values.

The work principle of URF04 module:(1) The IO trigger location, give the high signal at least 10us;

(2) the module automatically sends eight 40khz square wave, automatically detects whether a signal return;

(3)There is a return signal, outputs a high level by IO, high level duration is the time Ultrasonic from launch to return. The test distance = (high level time * speed of sound (340M/S)) /2;

Package Included:1 x Ultrasonic Sensor Module

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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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