This A02YYUW ultrasonic distance sensor is a top - notch commercial - grade module. It measures the distance to a target by timing the gap between sending and receiving ultrasonic pulses. Compared with other similar sensors, it has a much smaller blind zone, a wider sensing angle, and can penetrate smog and dust. The sensor uses a closed separated probe, making it waterproof and dustproof, perfect for harsh and moist measuring environments. All signal processing units are integrated inside the module. You can directly get the distance value through the Asynchronous Serial Interface. With a 9600bit/s band rate, it can easily communicate with upper - host or other MCUs, significantly shortening your development cycle. You can use it with an Arduino controller for various projects like backing car annunciators, obstacle - avoidance robots, and object approaching detection. Here are the specifications: Operating Voltage is 3.3 - 5V, Average Current is less than 8mA, Blind Zone Distance is 3cm, Detecting Range for flat objects is 3 - 450cm, Output is URAT, Response Time is 100ms, Operating Temperature ranges from - 15 to 60°C, Storage Temperature is from - 25 to 80°C, Reference Angle is 60º, and Waterproof Grade is IP67. There is also a product wiki available.
Using this ultrasonic sensor is quite straightforward. First, connect it to your Arduino or Raspberry Pi according to the instructions. When using it with an Arduino, the closed - separated probe design means it can work well even in wet and dirty places. Just power it up with a voltage between 3.3V and 5V, and it will start measuring distances. You'll get the distance values through the Asynchronous Serial Interface. For projects, you can integrate it into a backing car annunciator, an obstacle - avoidance robot, or an object approaching detection system. As for maintenance, keep it dry and clean. Don't expose it to extreme temperatures outside the operating range of - 15 to 60°C. When storing, make sure the temperature is between - 25 and 80°C. If you have any technical questions, refer to the product wiki.
