Green hc-sr04 Ultrasonic Module Ranging Intelligent Car Sensor (H5A2) | Электронные компоненты и принадлежности

Green hc-sr04 Ultrasonic Module Ranging Intelligent Car Sensor (H5A2) | Электронные компоненты и принадлежности

Question 1: Why is the price so cheap?

A: Our joint ultrasonic probe manufacturers in-depth cooperation, in order to combat the market copy this product, in particular10Million special, sold at below cost. Please pay attention to the majority of dealers purchase.

Question 2: Are you here the original?

A: This product from the self08Year to do now, the only original product.Selling tens of thousands of monthly sales, and selling at home and abroad, please rest assured to buy friends.

HC-SR04 ultrasonic module ranging module, manual electronic files, please download their own!

Download address (copy to browser address bar):Http://pan.baidu.com/s/1qWsal9U

On the product if the special requirements, can be customized according to customer requirements!

The module is stable and the measurement distance is accurate. Can and abroadSRF05, SRF02Such as ultrasonic rangefinder module comparable.Module high-precision, blind (2cm) ultra-close, stable range of this product is a strong basis for the success of this product to the market! Weighing about 8 grams

The main technical parameters:

1. use voltage:DC5V 2.Quiescent current: less than2mA

3: Level output: high5V4: Level output: low0V

5: Induction angle: no more than15degree 6: Detection distance: 2Cm-450cm 7:High precision: up to 3mm

Wiring, VCC, trig (control), echo (receiver), GND ground

The use of this product: a control mouth made a 10US above the high level, you can wait at the receiving port high output.

The output can be opened timer timer, when the mouth becomes low when you can read the value of the timer, this time for the distance of the distance,

Can be calculated from the distance. Such a constant cycle of measurement, you can achieve the value of your mobile measurement ~ ~

(1) using IO trigger range, to at least 10us high signal;

(2) module automatically send 8 40khz square wave, automatically detect whether there is a signal to return;

(3) a signal to return, through the IO output a high level, the high level of time is

Ultrasound from launch to return time.Test distance = (high time * sound velocity (340M / s)) / 2;  

This module provides a full range of ranging procedures: C51, PIC18F877, ultrasonic LCD1602 display, ultrasonic LCD12864 display, digital display, serial display, ranging reference programThe