SKU: SENS-4029
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DYP-A02YY4W-V2.0 RS485 Ultrasonic Distance Sensor 3–450cm - IP67 Waterproof PVC Housing

₹1,710.00 (Inclusive of all taxes)
Out of Stock

The DYP-A02YY4W-V2.0 is a high-precision, IP67 waterproof ultrasonic distance sensor offering a 3–450cm measurement range with millimeter resolution. It features multiple output interfaces including RS485, UART, PWM, and switch outputs, compatible with 3.3–5V logic systems and industrial 5–24V RS485 networks for integration with PLCs, Arduino, Raspberry Pi, and data loggers.

Features

  • High-precision ultrasonic ranging with temperature compensation and ±(1 + S*0.3%) cm accuracy.
  • Multi-interface output: RS485 Modbus, UART (automatic/controlled), PWM, and switch signal.
  • Robust IP67 waterproof PVC housing for reliable operation in damp or dusty environments.
  • Wide operating voltage: 3.3–5V for logic outputs, 5–24V DC for RS485 communication.
  • Low power consumption with ≤8mA active current and ≤5µA standby current.

Out of stock

Description

The DYP-A02YY4W-V2.0 ultrasonic sensor utilizes a 40kHz transducer to measure distances from 3cm to 450cm. Its advanced firmware incorporates real-time background calibration, noise suppression algorithms, and clutter rejection to deliver stable, nearly noise-free readings even in acoustically challenging environments. The sensor’s compact and sturdy PVC construction meets IP67 standards, ensuring protection against water and dust ingress.

Designed for flexible system integration, it provides four distinct output modes: RS485 for industrial Modbus networks, UART for direct serial communication, PWM for pulse-width proportional output, and a simple switch output for threshold detection. This versatility makes it suitable for a wide range of automation, robotics, and measurement applications requiring reliable non-contact distance sensing.

Key Features

  • 40kHz ultrasonic transducer with high output sound power for extended 450cm range.
  • Millimeter-level resolution enhanced by integrated temperature compensation.
  • Multi-protocol output includes RS485 (Modbus RTU), UART (TTL), PWM, and switch signal.
  • IP67-rated waterproof and dustproof PVC housing for harsh industrial and outdoor use.
  • Advanced signal processing with automatic gain control and noise suppression firmware.
  • Dual voltage range support: 3.3–5V for core logic, 5–24V for RS485 line power.
  • Ultra-low standby current (≤5µA) enables battery-powered or energy-efficient designs.
  • Operating temperature range of -15°C to +60°C ensures stable performance in varied climates.

Applications

  • Industrial bin and tank level monitoring in wet or dusty environments.
  • Robotics and AGV (Automated Guided Vehicle) obstacle detection and navigation.
  • Parking space availability systems and vehicle detection.
  • Agricultural equipment for height sensing and crop monitoring.
  • Security and intrusion detection systems for perimeter monitoring.

Technical Specifications

Model NumberDYP-A02YY4W-V2.0
Measurement PrincipleUltrasonic (40kHz)
Measuring Range3 cm to 450 cm
Dead Band3 cm
Accuracy±(1 + S × 0.3%) cm (S = measured distance)
Resolution1 mm
Output InterfacesRS485 (Modbus), UART (TTL), PWM, Switch
Standard Logic Voltage3.3 V to 5.0 V DC
RS485 Line Voltage5.0 V to 24.0 V DC
Active Current (Standard)≤ 8 mA
Active Current (RS485)≤ 15 mA
Standby Current≤ 5 µA
Operating Temperature-15°C to +60°C
Ingress ProtectionIP67
Housing MaterialPVC
ComplianceRoHS

Frequently Asked Questions

What is the difference between the standard 3.3-5V and RS485 5-24V power inputs?

The sensor has dual power domains. The 3.3-5V input powers the core logic and UART/PWM/switch outputs. The separate 5-24V input is specifically for the RS485 transceiver circuitry, providing the necessary line voltage for industrial communication over longer distances. Both must be supplied for full RS485 functionality.

How do I communicate with this sensor using RS485 Modbus?

Connect the sensor's RS485 A/B lines to a compatible Modbus RTU master (PLC, converter, or microcontroller). Apply 5-24V DC to the RS485 power pins. The sensor acts as a slave device with a configurable address. Standard Modbus function codes (e.g., 0x03 Read Holding Registers) are used to query distance values from its internal registers.

Can I use the UART output directly with an Arduino or Raspberry Pi?

Yes. When powered by 3.3-5V, the sensor's UART (TTL level) TX and RX pins can be connected directly to a microcontroller's serial pins. It supports both automatic continuous output of distance data and a controlled command mode for on-demand readings, making it compatible with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V logic systems.

What is the meaning of the accuracy formula ±(1 + S * 0.3%) cm?

This formula defines the sensor's accuracy as a combination of a fixed error and a distance-proportional error. 'S' is the measured distance in cm. For example, at 100cm, accuracy is ±(1 + 100*0.003) = ±1.3cm. At 400cm, it's ±(1 + 400*0.003) = ±2.2cm. The 1cm base error dominates at short ranges.

Is the sensor suitable for outdoor use in rain?

Yes, the IP67-rated PVC housing provides protection against temporary immersion in water up to 1 meter for 30 minutes and is dust-tight. It is designed for reliable operation in outdoor environments, including exposure to rain and high humidity, within its specified -15°C to +60°C temperature range.

Package Includes

  • 1 x DYP-A02YY4W-V2.0 Ultrasonic Distance Sensor (RS485 Output Version)

Additional Information

Weight 0.05 kg
Dimensions 16 × 10 × 4 cm