The DFRobot URM13 Fermion is an advanced high‑sensitivity ultrasonic distance sensor in a compact breakout board. It senses from 15 to 900 cm with 1 cm resolution and 1 % accuracy. Supporting TRIG pulse (HC‑SR04 compatible), I²C, and UART (Modbus‑RTU) interfaces, it works with 3.3 V or 5 V systems like Arduino and Raspberry Pi.

Ultrasonic Distance Sensor Breakout is built with smart noise‐detection, real‑time calibration, and precision circuit design, the URM13 delivers stable, accurate readings even in electrically noisy or cluttered environments. Weighing just 0.5 g, this tiny sensor is ideal for robotics, automation, and level measurement projects.

Features:

1. Measures from 15 cm to 900 cm, ideal for short to mid‑range sensing
2. High sensitivity with 1 cm resolution and ±1 % accuracy
3. Multi-modal interfaces: TRIG (pulse), UART (Modbus‑RTU), I²C
4. HC‑SR04 compatibility via TRIG pulse mode
5. Smart noise detection and automatic real‑time calibration
6. Compatible with 3.3 V and 5 V boards (Arduino, Raspberry Pi, etc.)
7. Compact breakout: 22 × 20 mm tiny footprint
8. Fast update: up to 10 Hz measurement frequency

Package Includes:

1 1x DFRobot Fermion: URM13 High Sensitivity Ultrasonic Distance Sensor
1 x 2.54 Black Single-Row 4PIN Connector