A
Anonymous
Apr 03, 2026
Rating: 5/5
Essential component
Used for a parking sensor project. Consistent readings within specified range.
Description
Home for electronics enthusiasts. Established 15 years ago. Engineers available for online support!
Reviews
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
A
Anonymous
Mar 12, 2026
Rating: 3/5
Indoor use only
Sunlight seems to affect the readings outdoors. Good for learning though.
A
Anonymous
Feb 18, 2026
Rating: 4/5
Good budget option
Decent accuracy for the price. Had to adjust code slightly for stability.
A
Anonymous
Feb 14, 2026
Rating: 5/5
Great for robotics
Works perfectly with my Arduino Uno. Easy to wire and plenty of libraries available.
A
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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