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
- 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
- 45 x 20 x 15 mm
- Weight 8.5g