Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Operating Voltage	5V DC
Operating Current	15mA
Operating Frequency	40Hz
Measuring Range	2cm - 400cm
Measuring Angle	15 Degrees
Trigger Input	10uS TTL Pulse
Echo Output	TTL Level Signal
Dimensions	45 x 20 x 15 mm
Weight	9 Grams
Interface	4 Pin Header

5 reviews

Anonymous

Apr 03, 2026

Rating: 5/5

Essential component

Used for a parking sensor project. Consistent readings within specified range.

Anonymous

Mar 12, 2026

Rating: 3/5

Indoor use only

Sunlight seems to affect the readings outdoors. Good for learning though.

Anonymous

Feb 18, 2026

Rating: 4/5

Good budget option

Decent accuracy for the price. Had to adjust code slightly for stability.

Anonymous

Feb 14, 2026

Rating: 5/5

Great for robotics

Works perfectly with my Arduino Uno. Easy to wire and plenty of libraries available.

Anonymous

Jan 30, 2026

Rating: 5/5

Easy to use

Plug and play with Raspberry Pi. Arrived quickly and well packaged.

5 FAQ

Q: Is this module waterproof?

A: No, this standard HC-SR04 module is not waterproof and should be used in dry indoor environments.

Q: What is the maximum range?

A: The maximum measuring range is typically around 400cm (4 meters) under ideal conditions.

Q: Can I use multiple sensors?

A: Yes, you can connect multiple sensors by using different trigger and echo pins for each module.

Q: Do I need a specific library?

A: There are many open-source libraries available in the Arduino Library Manager that support the HC-SR04.

Q: Is this compatible with 3.3V logic?

A: While the module runs on 5V, the echo pin may output 5V. Use a voltage divider for 3.3V microcontrollers.

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