Ultrasonic Sensor Module Adafruit Industries 3942 Featuring 45.5 by 20 by 15.5 Millimeter Sensor Size
Product Overview
The HC-SR04 Ultrasonic Sonar Distance Sensor is a versatile and cost-effective component commonly used in robotics, automation, interactive art, and motion sensing applications. It provides accurate distance measurements within a range of approximately 2cm to 400cm, with optimal results typically observed between 10cm and 250cm. This sensor operates with a 5V power supply and features a 3V or 5V trigger input, while its echo output signal is 5V logic. To facilitate compatibility with 3V devices, two 10K resistors are included for creating a voltage divider, ensuring a safe 2.5V logic level. It is compatible with platforms such as Arduino, CircuitPython, and MakeCode.
Product Attributes
- Product ID: 3942
- Included Accessories: 2 x 10K resistors
Technical Specifications
| Specification | Value |
|---|---|
| Power & Logic Voltage | DC 5V |
| Current during measurement | 15mA |
| Ultrasonic Frequency | 40 KHz |
| Measuring Angle | 15 |
| Trigger Input Signal | 10uS high pulse |
| Sensor dimensions (excluding header) | 45.5 x 20 x 15.5mm |
| Weight | 8.7g |
| Operating Range (approximate) | 2cm - 400cm |
| Optimal Operating Range (recommended) | 10cm - 250cm |
| Echo Signal Logic Level | 5V |
| Voltage Divider Output Logic Level | 2.5V (with included resistors) |
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