US-100 Ultrasonic Sensor Distance Measuring Module with Temperature Compensation
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

US-100 Ultrasonic Sensor Distance Measuring Module with Temperature Compensation

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  • Product SKU: KG636
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The US-100 Ultrasonic Sensor is a distance-measuring module that uses ultrasonic technology to measure the distance between the sensor and an object. It is designed to provide accurate distance measurements and features temperature compensation to account for variations in temperature.

Key Features of the US-100 Ultrasonic Sensor:

Ultrasonic Distance Measurement: The US-100 sensor uses ultrasonic pulses to measure the distance to an object. It emits ultrasonic waves and measures the time it takes for the waves to bounce back after hitting an object.

Temperature Compensation: This sensor includes temperature compensation, which means it can adjust its measurements based on the ambient temperature. Temperature can affect the speed of sound, and the sensor compensates for this to provide accurate distance readings.

Distance Range: The US-100 sensor typically has a range of about 2 centimeters (cm) to 400 cm, although the actual range may vary depending on the specific model and environmental conditions.

Output: It provides distance measurements in either centimeters (cm) or inches (in) through its digital output pins. Some versions of the sensor also provide temperature readings in degrees Celsius (°C) or Fahrenheit (°F).

Voltage Compatibility: The sensor is often compatible with both 3.3V and 5V power supplies, making it suitable for various microcontroller and embedded systems.

Operating Principle: The US-100 emits ultrasonic pulses from its transmitter and waits for them to bounce back from an object. By measuring the time it takes for the pulses to return, it calculates the distance to the object.

How it Works:

Trigger Signal: To initiate a measurement, you send a trigger signal to the sensor's trigger pin. This signal prompts the sensor to emit an ultrasonic pulse.

Ultrasonic Pulse: The sensor emits an ultrasonic wave, which travels through the air until it encounters an object.

Reflection: When the ultrasonic wave hits an object, it bounces back toward the sensor.

Time Measurement: The sensor measures the time it takes for the ultrasonic pulse to travel to the object and back to the sensor. This time measurement is directly related to the distance to the object.

Distance Calculation: The sensor uses the measured time and the speed of sound in air (adjusted for temperature) to calculate the distance to the object accurately.

Output: The sensor provides the distance measurement as a digital signal on its output pins.


  • Object detection and proximity sensing.
  • Robotics for obstacle avoidance and navigation.
  • Automatic door openers.
  • Distance measurement in industrial and automation systems.
  • Liquid level measurement in tanks and containers.
  • Parking assistance systems in vehicles.
  • Home automation for occupancy detection and lighting control.

Technical Details

  • Operating Voltage (VDC) : 2.4 to 5
  • Frequency(Hz) : 40000
  • Average Current Consumption (mA) : 2
  • Max. Sensing Distance (cm) : 450
  • Sensing Angle : 15°
  • Working Temperature(°C) : 20 to 70

Physical Attributes

  • Sensor Cover Dia. (mm) : 16
  • PCB Size ( L x W ) mm : 45 x 20
  • Weight (gm) : 9

Integration with Arduino

Sample Code

Integration with Raspberry Pi

Sample Code


Package Includes

  • 1 x US-100 Ultrasonic Sensor Distance Measuring Module with Temperature Compensation

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