DYP-A13NY4W-V1.0 RS485 Ultrasonic Sensor Measuring Range 25–200cm

This sensor uses an RS485 serial interface, which typically implements the Modbus RTU protocol. This allows for robust, long-distance communication (up to 1200 meters) and enables multiple sensors to be connected on the same bus network, making it suitable for industrial automation and monitoring systems.

The module has a wide operating voltage range of 3.3V to 24V DC. This flexibility allows it to be powered directly from common microcontroller development boards (3.3V/5V) or integrated into standard 12V or 24V industrial control panels without requiring an additional voltage regulator.

You will need an RS485 to TTL/UART converter module (like a MAX485 chip-based board) to interface with microcontrollers like Arduino. Connect the sensor's A and B lines to the converter, and the converter's TX/RX to your controller's serial pins. For industrial PLCs with built-in RS485 ports, connect directly to the corresponding communication terminal blocks, ensuring proper termination and bias resistors are configured if required.

The blind zone is the 0–25 cm range directly in front of the sensor where it cannot provide accurate distance readings. Objects placed within this zone will either not be detected or will return unreliable measurements. For accurate operation, ensure the target is positioned beyond 25 cm from the sensor face.