1, I2C interface and TTL serial port, one I2C can be connected to 20 modules, there are 20 modifiable addresses, to meet the needs of multiple connections. 2. Distance: The wall can be measured to 8 meters, and the person can be measured to be about 2 meters. The water surface is about 4 meters, and the vehicle is 4-5 meters; 3. Blind area: up to 1CM; this is currently beyond the reach of other ultrasonics; 4. Accuracy: Including real-time temperature compensation. The average measurement within 3 meters of the wall is 3MM, and the highest is 1MM. The accuracy of measuring people is about 1CM. This is also not achieved by other ultrasonics at present. 5. Multi-range detection command, the range command of the corresponding distance can be selected for short-range detection to meet the needs of short-range fast detection. 6, Intelligent detection end recognition function: 7. Adjustable filter noise reduction technology; 8, power saving mode: with automatic sleep function; 9. At the same time, it can quickly and accurately measure
