SparkFun
HC-SR04-33 Ultrasonic Distance Sensor - 3.3V/5V
· MPN: SEN-24049
This economical ultrasonic module provides non-contact distance measurement for range-finding and obstacle-detection projects. It measures from 2cm to 400cm,...
Get notified when back in stock
This economical ultrasonic module provides non-contact distance measurement for range-finding and obstacle-detection projects. It measures from 2cm to 400cm, with ranging accuracy that can reach up to 3mm.
Each module includes an ultrasonic transmitter, a receiver and a control circuit. The interface is simple, with four pins: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground).
This 3.3V-compatible version can be operated at both 3.3V and 5V, making it easier to use with a wider range of microcontroller boards. It also includes additional control circuitry that can help prevent inconsistent “bouncy” data depending on the application.
Features:
- Non-contact measurement functionality from 2cm to 400cm.
- Includes an ultrasonic transmitter, a receiver and a control circuit.
- Four-pin interface: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground).
- Additional control circuitry can prevent inconsistent “bouncy” data depending on the application.
- Can be operated at both 3.3V and 5V.
- Same ultrasonic sensor used with the XRP kits Beta & DIY.
Specifications:
- Operating Voltage: 3.3V~5V DC
- Current: 15mA
- Frequency: 40Hz
- Max Range: 4m
- Min Range: 2cm
- Measuring Angle: 15°
- Trigger Input Signal: 10uS TTL pulse
- Echo Output Signal: Input TTL lever signal and the range in proportion
- Dimension: 45 x 20 x 15mm
- Ranging accuracy: Can reach up to 3mm
A handy sensor for robotics, simple distance measurement, obstacle detection and maker projects using 3.3V or 5V logic.
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Ultrasonic module
- An ultrasonic module measures distance by sending out high-frequency sound pulses and timing their echo. It is commonly used for obstacle detection and simple range-finding projects, but it needs a clear path to the target.
- VCC
- VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.
Find this product in
HC-SR04-33 Ultrasonic Sensor Datasheet
Datasheet · 491.1 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 639.1 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
