Grove – Ultrasonic Distance Sensor – Seeed Studio

Resources:
Download Wiki PDF
Grove_Ultrasonic Ranger Schematic
Ceramic Ultrasonic Sensor NU40C16T/R-1
Grove_Ultrasonic Ranger library
CDC File
Example_Measure_distance_and_led_display
Example_Measure_and_display_the_distance

Grove Ultrasonic Ranger | High-Precision Distance Sensor Seeed Studio
The Grove Ultrasonic Ranger is a reliable and easy-to-use distance measurement module designed for robotics, automation, and smart sensing applications. Using ultrasonic wave reflection, this sensor accurately measures distances from 3 cm to 350 cm with an impressive 2 mm accuracy. It integrates both an ultrasonic transmitter and receiver, functioning as a complete ultrasonic transceiver ideal for proximity detection, obstacle avoidance, and range-finding tasks.
Operating on 3.2V5.2V, the sensor is fully compatible with both 3.3V and 5V systems, making it easy to connect directly to microcontrollers such as Arduino, Raspberry Pi, and other development platforms. Its unique design saves I/O resources by requiring only one I/O pin for both transmit and receive, thanks to time-division multiplexing. Fully supported by the Grove ecosystem, the module offers true plug-and-play convenience, complemented by extensive documentation, Arduino libraries, Python support, and Codecraft integration.
Key Features

Wide Voltage Compatibility (3.2V5.2V)Works seamlessly with 3.3V and 5V systems, including direct Raspberry Pi I/O connection.
Minimal I/O UsageRequires only 3 pins; transmit and receive share one I/O pin using time-division multiplexing.
Wide Measurement RangeDetects distances from 3 cm up to 350 cm, suitable for both short and long-range sensing.
High Accuracy SensorMeasures with precision up to +-2 mm, ideal for robotics and automation.
Grove Plug-and-Play SupportEasily connect via the Grove port without soldering or wiring complexity.
Rich Software LibrariesSupported on Arduino, Python, and Codecraft with comprehensive documentation.
Ultrasonic Transceiver OperationUses 40 kHz ultrasonic pulses and time-of-flight calculation for distance measurement.

Applications

Distance measurement
Ultrasonic detector
Proximity alarm
Smart car

Package Content:

Grove – Ultrasonic Rangerx1