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Description:

HC-SR04 Ultrasonic Module with Jumper Cable Wires 5V DistanceMeasuring Transducer Sensor

 HC-SR04 Ultrasonic Module withJumper Cable Wires 5V Distance Measuring TransducerSensor  

 

Description:

HC-SR04 Ultrasonicranging module provides 2cm-400cm non-contact measurement function,the ranging accuracy can reach to 3mm. Themodules includes ultrasonic transmitters, receiver and controlcircuit. The basicprinciple ofwork:

• Using IO trigger for at least 10ushigh level signal
• The Module automatically sendseight 40 kHz and detect whether there is a pulse signalback.
• IF the signal back,through high level , time of high output IO duration is the timefrom sending ultrasonic toreturning.
•     Test distance = (high leveltime×velocity of sound (340M/S) /2

Features:

• Working Voltage :5V(DC)
• Static current: Less than2mA.
• Output signal: Electric frequencysignal, high level 5V, low level 0V.
• Sensor angle: Not more than 15degrees.
• Detection distance:2cm-400cm.
• High precision: Up to0.3cm
• Input trigger signal: 10us TTLimpulse
• Echo signal : output TTL PWLsignal
• Pin connection : 4 pins out of themodule - VCC , Trig, Echo, GND
• Part Number : HC-SR04
• Some part on the board: MAX232ESE

Usemethod:

1. Supply module with 5V, the outputwill be 5V while obstacle in range, or 0V if not.The out pin ofthis module is used as a switching output when anti-theft module,and without the feet when ranging modules.
2. Note : the module should beinserted in the circuit before been power, which avoid producinghigh level of misoperation;if not, then poweragain.

Packageincluded:

• 1 X  HC-SR04 Ultrasonic Module with Jumper CableWires 5V Distance Measuring Transducer Sensor

Note :

• This module is not suitable toconnect with electric power, if you need to connect this modulewith electronic power, then let the GND terminal of this module tobe connected first, otherwise, it will affect the normal work ofthe module