HC-SR04 v2 - Low Cost Ultrasonic Sensor (3V to 5V Supply)

This product is the second generation of the popular HC-SR04 Low Cost Ultrasonic Sensor. Unlike the first generation HC-SR04 that can only operate between 4.8V to 5V DC, this new version has much wider input voltage range, allow it to work with controller operates on 3.3V.

HC-SR04 ultrasonic sensor provides a very low-cost and easy method of distance measurement. It measures distance using sonar, an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance-to-target is determined by measuring the time required for the echo return. Output from the sensor is a variable-width pulse that corresponds to the distance-to-target.

This sensor offers excellent range accuracy and stable readings in an easy-to-use package. An onboard 2.54mm pitch pin header allows the sensor to be plugged into a solderless breadboard

NOTE: The screw / nut set for this sensor can be purchased separately.

Features:

• Wide operating voltage range: 3.0 – 5VDC
• Provides precise, non-contact distance measurements within a 2cm to 4m range
• Communication:Positive TTL pulse
• 15 mA operating current
• 4-pin header, no soldering required

Dimensions:

• 45 x 20 x 15 mm
• Weight 8.5g

Documents:

• Arduino Tutorial
• Library for Arduino - NewPing