DYP-A13NYTW-V1.0 UART Controlled Ultrasonic Sensor Measuring Range 25–200cm

This sensor uses a UART (Universal Asynchronous Receiver-Transmitter) TTL serial interface for communication. It outputs distance data as serial data packets, making it straightforward to connect directly to microcontrollers like Arduino, ESP32, or Raspberry Pi (via a logic level converter if needed) without requiring analog-to-digital conversion or complex timing calculations.

The blind zone (0-25 cm) is a characteristic of the sensor's ultrasonic transducer and reflective design. Objects placed within this distance cannot be measured accurately because the ultrasonic pulse requires a minimum time to leave the sensor, reflect off the target, and return. For reliable measurements, ensure the target object is positioned beyond 25 cm from the sensor face.

The module contains an integrated temperature compensation circuit that adjusts the speed-of-sound calculations based on the ambient temperature. Since ultrasonic travel time is affected by air temperature, this feature ensures measurement accuracy remains stable across the specified operating range of -15°C to +60°C, preventing drift and maintaining the stated ±5mm repeatability.