AED 36

Description

[PACKAGE INCLUDED] 3pcs HC-SR04 distance measurement module & 3pcs ing bracket for installation.
[FEATURE] These module is for distance measuring transducer that working with ultrasonic, they consist of ultrasonic transmitter, receiver, and control circui.
[FUNCTIONAL PARAMETER] Effectual Angle: <15 degree ; Detection Distance : 2cm~450 cm ; Resolution : 0.3 cm. Power Supply : 5V DC ; Quiescent Current : <2mA ;.
[UNIVERSAL COMPATIBILITY] Built in standard interface that can be controlled directly by microcontroller，such as 8051, AVR.
[WORKING PRINCIPLE] Using IO trigger for at least 10us high level signal, when triggered it sends out a series of 40KHz ultrasonic pulses and receives echo from an object, the duration of the signal is the time from sending ultrasonic to returning.The distance = (duration time * sound velocity (340M/S) / 2.

Excelity HC-SR04 Ultrasonic Moudle is to measure the distance of object by 40KHz ultrasonic sound wave. This moulde provides 2cm-400cm non-contact measurement function, the ranging accuracy can reach to 3mm. It is great for the project that need distance measurement, such as Distometer,intelligent robot navigation system,etc. Module main technical parameters: -Working Voltage : 5V(DC) -Static current: Less than 2mA -Output signal: Electric frequency signal, high level 5V, low level 0V -Sensor angle: Not more than 15 degrees -Detection distance: 2cm-450cm. -High precision: Up to 0.3cm -Input trigger signal: 10us TTL impulse -Echo signal : output TTL PWL signal Pin definition: -VCC: connect to 5V DC -Trig(T): control pin, connect to a standard I/O port -Echo(R):receiving end, connect to a standard I/O port -GND: Connect to Ground Notes: -1. The module should be inserted in the circuit before been powered to avoid producing high level of misoperation; if producted, power it again. -2. Before connect to VCC terminal, the GND terminal should be connected the module first,otherwise,it will affect the normal work of the module. Module Working Principle: -1. Pull the Trig pin to high level for more than 10us impulse, the module start ranging. -2. The module automatically sends eight 40KHz square wave to detect whether a signal is returned. -3. Finished ranging, If you find an object in front, Echo pin will be high level, and based on the different distance, it will take the different duration of high level. -4. Calculated the distance, the distance = (high level time * sound velocity (340M/S) / 2. Package included: -3pcs HC-SR04 Moulde -3pcs ing Bracket

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Excelity 3pcs Ultrasonic Module HC-SR04 Distance Sensor with 3pcs ing Bracket

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