Product Description
This module has stable performance and accurate measurement distance. Module high-precision, blind( 2cm ) ultra-close, stable range is the success of this product to the market a strong basis! This module fully humility GH-311 anti-theft module.
(1) using lO trigger ranging, to at least 10us of high-level signal;
(2) the module automatically sends eight 40khz square wave, automatically detect whether there is signal return;
(3) there is a signal return, through the lO output of a high , high duration is the time from the launch to the return of ultrasound.
Test distance = (high time*sound speed (340M / S ) / 2;
This product is simple to use, a control mouth made a 10US above the high level, you can wait for the reception of high-level output. An output can be opened timer, when the mouth becomes low when you can read The value of the timer , this time for the distance of time, can be calculated from the distance.
Such a continuous cycle of measurement , you can move the measured value.
Product Features
1:Working voltage: DC5V
2:Quiescent current: less than 2mA.
3: Level output: High 5V.
4:Level output: Bottom 0V.
5: Sensing angle: not more than 15 degrees.
6:Detection range: 2cm-450cm.
7: High precision: up to 0.3cm.
![](https://ae01.alicdn.com/kf/Sd09ff34395ea49d49064744c036cf33cS.jpg?width=944&height=723&hash=1667)
Board connection: VCC-trig ( control side ) , echo(receiver) , out ( empty feet ) , GND.
Note: TRIP pin is the internal pull-up 10K resistor,with the MCU IO port pull down TRIP pin, and then to a 10us or more pulse signal. OUT feet for this module as the anti-theft module when the switch output pin, Ranging module does not use this foot!
![](https://ae01.alicdn.com/kf/Sf224ad53c0a44d8cad7e35a3ca4bfa415.jpg?width=944&height=1047&hash=1991)