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Home / Computer Hardware, Monitors & Peripherals / GY-US42 Ultrasonic Ranging Sensor Module Compatible with MB1242/SRF02

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5.5V DC
Measuring Range 20cm - 450cm
Interface Protocol I2C / PWM / Serial
Resolution 1cm
Beam Angle 15 degrees
Operating Temperature -20°C to +70°C
Module Dimensions 22mm x 17mm x 9mm
Weight 3.5 grams
Compatibility Arduino, Raspberry Pi, STM32
Output Update Rate 20Hz

5 reviews

A

Anonymous

Apr 03, 2026

Rating: 3/5

Documentation needs improvement

Sensor works but the provided wiki link was broken. Had to find datasheet elsewhere.

A

Anonymous

Feb 23, 2026

Rating: 5/5

Highly accurate

Tested against a laser measure and it was surprisingly close for the price point.

A

Anonymous

Feb 23, 2026

Rating: 4/5

Good sensor, slight learning curve

Value for money is great. Had to check the pinout diagram carefully before connecting.

A

Anonymous

Feb 19, 2026

Rating: 5/5

Perfect for robotics

Works flawlessly with my Arduino Uno. Range is accurate within specified limits.

A

Anonymous

Feb 15, 2026

Rating: 5/5

Great starter sensor

Easy to integrate into my obstacle avoidance car project. Verified purchase.

5 FAQ

Q: Can I use this outdoors?

A: It works outdoors but strong wind or rain may affect ultrasonic performance.

Q: What is the minimum detection distance?

A: The minimum reliable detection distance is approximately 20cm.

Q: Can I connect multiple sensors on one I2C bus?

A: Yes, but you may need to configure addresses if supported or use multiplexing.

Q: Can this run on 3.3V logic?

A: Yes, it supports 3.3V to 5.5V operating voltage.

Q: Is there an Arduino library available?

A: Yes, several community libraries support the I2C interface for this module.

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