SKU: SEN0207
A fully waterproof ultrasonic ranging sensor with a 24–500 cm detection range, ±(1 + S*0.5%) defined accuracy, built-in temperature compensation for stable performance under changing weather conditions, multi-mode output options, and wide 3.3–5V compatibility—ideal for obstacle detection, proximity sensing, robotic perception, traffic monitoring, scientific experiments, and industrial automation.
1. Distance Measurement – Mode 0
This project demonstrates how to use the Waterproof Ultrasonic Sensor in Mode 0 (PWM pulse-width output) to measure distance.
2. Distance Measurement – Mode 1
This project demonstrates how to use the Waterproof Ultrasonic Sensor in Mode 1 (UART automatic output) to measure distance.
3. Distance Measurement – Mode 2
This project demonstrates how to use the Waterproof Ultrasonic Sensor in Mode 2 (UART controlled output) to measure distance.
4. Distance Measurement – Mode 3
This project demonstrates how to use the Waterproof Ultrasonic Sensor in Mode 3 (switch output).
FAQ
Many ultrasonic sensors on the platform, how to choose?
It is recommended to refer to this selection guide.
Fluctuations in temperature can affect the speed of sound waves in an ultrasonic sensor. As temperature increases, the speed of sound waves also increases. While the target may not have moved, the sensor may detect it as being closer due to this increase in speed. In addition, airflow caused by pneumatic equipment or fans may deflect or disrupt the path of ultrasonic waves, which could lead to the sensor failing to recognize the correct position of the target.
Yes. Ultrasonic sensors can emit ultrasonic waves and detect surrounding objects, including people, by receiving the reflected sound waves.
Can ultrasonic detection work underwater?
Yes. The speed of ultrasonic waves propagating in water is faster compared to that in air. Therefore, the use of ultrasonic sensors in underwater applications is feasible. In fact, many underwater measurement applications rely on ultrasonic sensors for distance measurement and object detection, such as underwater mapping, underwater robots, and underwater pipeline inspection.
The ultrasonic sensor is hardly affected by any environmental conditions, including smoky or rainy environments. However, if you want to use the ultrasonic ranging sensor outdoors for a long time, it is recommended to choose a waterproof ultrasonic sensor, such as the A02YYUW waterproof ultrasonic sensor (SEN0311) or the waterproof ultrasonic ranging module (SEN0207).
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