Landa Tianrui LDTR – WG0106 2PCS HC – SR04 Ultrasonic Sensor…
Price:
$3.33
Main Features:
● Detection distance: 2cm – 450cm, super close blind spots ( 2cm )
● Provides a full set of ranging process
● Measuring precision up to 3mm
● Adopt IO trigger through supplying at least 10us sequence of high level signal
● The module automatically send eight 40KHz square wave and automatically detect whether receive the returning pulse signal
● If signals returning, through outputting high level and the time of high level continuing is the time that from the ultrasonic transmitting to receive
● Static current: less than 2mA
● Working voltage : DC 5V
● Output signal: electric frequency signal, high level 5V, low level 0V
● Sensor angle: not more than 15 degrees
● Mode of connection: VCC / trig ( T ) / echo ( R ) / GND
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