Description

US-100 Ultrasonic Distance Sensor

The US-100 Ultrasonic Distance Sensor is a high-precision ranging module designed for robotics, automation, obstacle avoidance, and STEM education. Compared with traditional ultrasonic modules, the US-100 features built-in temperature compensation, improving measurement stability across different environments.

Supporting both GPIO trigger/echo mode and UART serial communication, the module is easy to integrate into Arduino, ESP32, STM32, Raspberry Pi, and other microcontroller projects.

Whether you’re building an autonomous robot, measuring liquid levels, or creating an IoT distance monitoring system, the US-100 offers reliable and accurate performance.

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⭐ Why Choose the US-100 Ultrasonic Distance Sensor

• Measurement Range: 2cm–450cm
• Built-in Temperature Compensation
• Higher Accuracy than HC-SR04
• Supports GPIO and UART Modes
• Operating Voltage: DC 2.4V–5.5V
• Low Static Current (<2mA)
• 15° Measuring Angle
• Stable Performance
• Easy 4-Pin Interface
• Compatible with Arduino, ESP32, STM32 and Raspberry Pi

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Specifications

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Pin Definition

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Working Principle

The US-100 Ultrasonic Distance Sensor pulses at approximately 40kHz. After receiving the reflected signal from an object, the module calculates the distance based on the travel time of the sound wave.

In GPIO mode, the controller sends a trigger pulse and measures the echo pulse width.

In UART mode, distance data can be read directly through the serial interface without timing calculations.

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Applications

• Obstacle Avoidance Robots
• Smart Cars
• Arduino Projects
• ESP32 Development
• Raspberry Pi Projects
• Liquid Level Monitoring
• Smart Parking Systems
• Automatic Doors
• IoT Distance Monitoring
• STEM Education
• DIY Electronics

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Package Includes

• 1 × US-100 Ultrasonic Distance Sensor Module

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Notes

• Recommended measuring distance: 2cm–450cm
• Soft materials may reduce reflection accuracy.
• Avoid installing near strong ultrasonic interference sources.
• Ensure the sensor surface remains clean for best performance.

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Learn More

Want to learn more? Watch this tutorial to see how an ultrasonic distance sensor works with Arduino and other microcontrollers. Credit belongs to the original creator.

https://www.youtube.com/watch?v=F0hHrrUqq9w

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Related Products

You may also be interested in these related products:

• HC-SR04 Ultrasonic Distance Sensor
• MPU-6050 6DOF IMU Sensor
• DHT11 Temperature & Humidity Sensor
• Soil Moisture Sensor Module

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FAQ

Q1: What is the measuring range?

The US-100 measures distances from 2cm to 450cm.

Q2: Does it support Arduino?

Yes. It is fully compatible with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers.

Q3: What is the advantage over HC-SR04?

The US-100 includes built-in temperature compensation, improving measurement accuracy and stability.

Q4: Does it support UART?

Yes. The module supports both GPIO Trigger/Echo mode and UART serial mode.

Q5: What voltage does it require?

It operates from 2.4V to 5.5V DC.

Q6: Can it be used outdoors?

It can be used outdoors in dry environments but should be protected from direct water exposure.

Q7: What is included?

One US-100 Ultrasonic Distance Sensor Module.