1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
9.Adopt IO trigger through supplying at least 10us sequence of high level signal.
10.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
11.If there is signals returning, can get the time of that from the ultrasonic transmitting to receiving through outputting high level and the time of high level continuing.
Test distance =(high level time * sound velocity (340M/S) / 2.
This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module.
1 x Ultrasonic Module HC-SR04 Distance Measuring Transducer
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