DFRobot
HRLV-MaxSonar-EZ4 (MB1043)
The HRLV-MaxSonar-EZ4 (MB1043) is a compact ultrasonic range sensor with 1 mm resolution, measuring distances from 300 mm to 5000 mm at a 10 Hz read rate. It...
The HRLV-MaxSonar-EZ4 (MB1043) is a compact ultrasonic range sensor with 1 mm resolution, measuring distances from 300 mm to 5000 mm at a 10 Hz read rate. It features the narrowest beam width in the HRLV-MaxSonar-EZ sensor line, making it ideal for detecting larger objects while ignoring smaller ones.
The sensor provides virtually noise-free readings through high-output acoustic power, continuously variable gain, real-time automatic calibration, waveform signature analysis, and noise rejection algorithms. Multiple output formats are available: analogue voltage, serial (RS232 or TTL), and pulse width.
Key Features
- 1 mm Resolution – High-precision millimetre-level distance measurement
- 300–5000 mm Range – Objects closer than 300 mm typically read as 300 mm
- Narrowest Beam – Most focused beam in the HRLV-MaxSonar-EZ line, best for large object detection
- Multiple Outputs – Analogue voltage, RS232 or TTL serial, and pulse width
- Real-Time Auto Calibration – Compensates for voltage, humidity, and ambient noise
- Firmware Noise Filtering – Enhanced clutter rejection and noise tolerance
- Internal Temperature Compensation – With optional external sensor (HRMaxTemp)
- Compact Module – Less than one cubic inch with mounting holes
Specifications
- Sensor Frequency – 42 kHz ultrasonic
- Range – 300–5000 mm
- Resolution – 1 mm
- Read Rate – 10 Hz
- Supply Voltage – 2.5–5.5V
- Current Draw – 3.1 mA average
- Operating Temperature – 0°C to +65°C
- Compliance – RoHS
Ideal For
- Large object detection and proximity sensing
- Precision distance measurement
- Robotics and autonomous navigation
- Level sensing and fill monitoring
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Temperature compensation
- Temperature compensation means the sensor adjusts its readings to reduce errors caused by changes in water temperature. This matters for field monitoring because ponds, rivers, and tanks can vary in temperature throughout the day and across seasons.
- Tolerance
- Tolerance tells you how far the real resistance value may be from the printed value. A 1% resistor is useful when a circuit needs more predictable behaviour than a looser 5% or 10% part.
- TTL serial
- A simple serial data connection that uses microcontroller logic-level signals rather than computer RS-232 voltage levels. It matters because the camera can connect directly to many microcontroller pins or a USB-to-TTL serial adapter, but not safely to an old-style RS-232 port without conversion.
Find this product in
Brands
Supplier page — dfrobot.com
Supplier Description · 502.7 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
