The Grove – Ultrasonic Ranger is a perfect ultrasonic module as proximity sensor, as ultrasonic detector, for distance measurement, and smart car system. With a wide voltage range, single I/O pin as well as plug and play Grove connector, this module is designed with the best efforts to make it easier to use and reduce your work. For all Grove users (especially beginners), Seeed Studio has provided guidance PDF documents.
Hardware Overview
This module has an ultrasonic transmitter and an ultrasonic receiver so you can consider it as an ultrasonic transceiver. It has 4 pins with their functions as shown in the figure above. When the 40 kHz ultrasonic wave generated by the transmitter encounters the object, the sound wave will be emitted back, and the receiver can receive the reflected ultrasonic wave. It is only necessary to calculate the time from the transmission to the reception, and then multiply the speed of the sound in the air (340 m/s) to calculate the distance from the sensor to the object.
Comparison with HC-SR04
Features
Output: PWM
3.3 V / 5 V compatible
Wide voltage level: 3.2 V~5.2 V
Only 3 pins needed, so saves I/O resources
Wide measurement range: 3 cm ~ 350 cm
Easy to use: Just plug-and-play
Specification
| Operating Voltage (VDC) | 3.2 ~ 5.2 |
| Max. Operating Current (mA) | 8 |
| Ultrasonic Frequency | 40 kHz |
| Measurement Range | 3 cm to 350 cm |
| Accuracy | 2 mm |
| Length (mm) | 40 |
| Width (mm) | 22 |
| Height (mm) | 16 |
| Mounting hole diameter (mm) | 2 |
| Weight (gm) | 10 |
Reviews
There are no reviews yet.