URM07-UART Low-Power Consumption Ultrasonic Sensor (20~750cm)

The URM07 is an ultra-low-power UART ultrasonic distance sensor with an effective range of 20–750 cm. Operating on 3.0–5.5 V, it is directly compatible with 3.3 V and 5 V microcontrollers including Arduino and Raspberry Pi. With an average operating current of just 5 mA and standby current under 14 µA, it is well suited for battery-powered and remote sensing applications.

A built-in temperature sensor provides automatic temperature compensation for improved distance accuracy. The integrated ultrasonic probe offers an approximately 60° detection angle in a compact 27 × 27 mm package, communicating via UART over a 2.54 mm 4-pin interface.

Key Features

• Ultra-Low Power – Average 5 mA operating, <14 µA standby
• Wide Range – 20–750 cm effective detection distance
• Built-In Temperature Compensation – On-board sensor corrects for ambient temperature
• Wide Voltage Range – 3.0–5.5 V DC, compatible with 3.3 V and 5 V systems
• UART Interface – 2.54 mm 4-pin connector
• Protection – Reverse polarity and overvoltage protection
• Compact – Integrated probe design, 27 × 27 mm

Specifications

• Operating Voltage – 3.0–5.5 V DC
• Effective Range – 20–750 cm
• Detection Angle – ~60°
• Distance Resolution – 1 cm
• Distance Error – 1%
• Average Current – <5 mA (continuous measurement)
• Peak Current – <9 mA
• Standby Current – <14 µA
• Acoustic Frequency – 38–42 kHz
• Boot Time – <20 ms
• Measurement Period – <60 ms
• Temperature Error – ±1 °C
• Operating Temperature – −10 °C to +70 °C
• Operating Humidity – <75% RH
• I/O Mode – Open drain with integrated pull-up resistor
• Dimensions – 27 × 27 mm
• Weight – ~4.2 g

Ideal For

• Battery-powered distance sensing
• Robotics obstacle avoidance
• Level measurement and proximity detection
• IoT and remote monitoring projects

Package Contents

• 1× URM07 UART Ultrasonic Sensor (20–750 cm)

Resources

• Wiki Documentation