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3942

Name: Adafruit 3942
Brand: Adafruit
SKU: 485-3942
Price: 3.95 USD
Availability: InStock

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Mouser No:

485-3942

Mfr. No:

3942

Mfr.:

Adafruit

Description:

Distance Sensor Development Tool HC-SR04 Ultrasonic Sonar Distance Sensor + 2 x 10K resistors

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Learn more about Adafruit 3942

In Stock: 175

Stock:: 175

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On Order:: 160

Expected 2026/05/26
Factory Lead Time:: 1

Week Estimated factory production time for quantities greater than shown.

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	$3.95	$3.95

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Product Attribute	Attribute Value	Select Attribute
Manufacturer:	Adafruit
Product Category:	Distance Sensor Development Tool
Product Type:	Distance Sensor Development Tool
Type:	Ultrasonic Sensor
Operating Supply Voltage:	5 V
Brand:	Adafruit
Factory Pack Quantity:	1
Subcategory:	Development Tools
Unit Weight:	8.700 g

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Product Overview

Adafruit HC-SR04 Ultrasonic Sonar Distance Sensor Product Overview (PDF)

CNHTS:: 9031809090
CAHTS:: 8543700000
USHTS:: 8543704500
JPHTS:: 854370000
ECCN:: EAR99

HC-SR04 Ultrasonic Sonar Distance Sensor

Adafruit HC-SR04 Ultrasonic Sonar Distance Sensor is used for automation, interactive art, and motion sensing. The sensor, which is common in robotics projects, is fast, fairly easy to use, and low cost. The Trig signal can be 3V or 5V, while the "return" Echo signal is 5V logic. For that reason, two 10K resistors are included for use as a divider to convert the 5V logic level to a safe 2.5V for 3V devices. The sensor works at about 2cm to 400cm away, but 10cm to 250cm can provide ideal results.