Waterproof Ultrasonic 4X Distance Measuring Sensor Module - UART Output

Ultrasonic One Drag Four Distance Measuring Module UART Output

Model: DYP-A05LYU-V1.1 (UART output variant)

This variant belongs to the A05 series—an ultrasonic ranging module with four integrated waterproof probes. It supports UART output (automatic), ideal for applications where serial communication is preferred.

Technical Specifications

Based on the official and marketplace sources:

• Dead band (blind zone): 25 cm
• Measuring range (flat objects): 25 cm to 450 cm
• Beam angle: Approximately 60°
• Response time: 300–1500 ms 
• MTTF (Mean Time To Failure): 26,000 hours
• Supply voltage: 9–36 V DC 
• Residual ripple: < 50 mA
• Power consumption: ≤ 5 mA
• Accuracy (flat objects): ±(1 + S×0.3%) cm, where S = distance
• Connection type: UART automatic (TTL-level serial interface)
• Time delay before availability: 900 ms
• Connector: XHB 2.54 mm 4-pin housing
• Housing material: ABS plastic 
• Operating temperature: –15 °C to +60 °C
• Storage temperature: –25 °C to +80 °C
• Temperature compensation: On-board, automatically corrects temperature deviation
• Frequency: 40 kHz ultrasonic 
• Compliance: RoHS compliant

Key Features & Applications

Highlights:

• Four-direction measurement using enclosed waterproof probes—makes it suitable for harsh or wet environments.
• Wide voltage support (9–36 V DC) offers flexibility for many system power designs.
• High reliability with 26,000 hours MTTF.
• Compact and easy integration with XHB connector and low power consumption.
• Temperature compensation and RoHS compliance ensure stable and safe operation.

Ideal Use Cases:

• Robot obstacle avoidance and automation control systems.
• Object proximity and presence detection.
• Parking sensors or smart parking systems.

Summary Table

UART Protocol Details (Based on DYP-A01 Series, Likely Similar)

Frame Format (Auto-Output Mode)

• Baud Rate: 9600 bps, Serial TTL levels
• Data Format: 8 data bits, 1 stop bit, No parity
• Frame Structure:
  • Frame Header: 0xFF (1 byte)
  • Data_H: High 8 bits of the distance reading (1 byte)
  • Data_L: Low 8 bits of the distance reading (1 byte)
  • Checksum (SUM): Sum of Frame Header + Data_H + Data_L, with only the lower 8 bits retained (1 byte) Scribd
• Distance Calculation:
  • Distance = Data_H * 256 + Data_L
  • Example: 0xFF 0x07 0xA1 0xA7
    • Checksum: (0xFF + 0x07 + 0xA1) & 0xFF = 0xA7
    • Distance Value: 0x07A1 → 1953 mm Scribd

Controlled Output Mode (Trigger-Based)

• A falling edge trigger on RX or any received serial data initiates a measurement.
• After the measurement, the module sends out the distance reading via TX in the same frame format as above.
• Trigger Interval: Must exceed 70 ms between triggers; typical timing:
  • T1 (trigger interval) > 70 ms
  • T2 (measurement processing period) ~ 50–60 ms Scribd

Wiring & Pins

The input/output wiring is typically:

A05 Series—Extrapolating to DYP-A05LYU-V1.1

• The DYP-A05LYU-V1.1 is configured for UART auto-output—it continuously outputs distance readings via UART without needing external triggers. dypcn.com
• It's very likely that its frame structure and electrical interface mirror that of the A01 series:
  • Baud rate: 9600 bps
  • Frame format: 0xFF + Data_H + Data_L + Checksum
  • Checksum calculation and distance computation as shown above.

Summary Table

Download:

• Datasheet