DYP-H01IO4-V1.0 Capacitive High-Precision Ultrasonic Range Finder - RS485

The sensor communicates via an RS485 interface, typically using the Modbus RTU protocol. This allows for reliable, noise-immune data transmission over long distances (up to 1200 meters) and enables daisy-chaining of multiple sensors on a single bus, making it ideal for industrial automation networks.

The sensor operates on a DC supply voltage from 5V to 12V. Ensure your power source is stable and can provide the required current (less than 25 mA). For best performance and to avoid communication errors, use a dedicated power supply or a properly regulated source separate from noisy motor drivers.

You cannot connect RS485 directly to a microcontroller's UART pins. You need an RS485 to TTL/UART converter module (e.g., MAX485). Connect the sensor's A/B lines to the converter, then the converter's TX/RX to your controller's serial pins. You will also need a library to handle the Modbus protocol communication on your device.

The sensor has a specified measurement range from 10 centimeters (minimum) up to 800 centimeters (8 meters). Performance at the extreme ends of this range can be influenced by target material, angle, and environmental conditions like temperature and humidity.

The sensor comes pre-calibrated from the factory. It includes integrated temperature compensation circuitry, which automatically adjusts readings to maintain accuracy across its operating temperature range of -10°C to +50°C, ensuring stable performance in varying environments.