Overview
EchoRange HC-SR04 is a compact ultrasonic distance module prepared for robotics test benches, mobile rover prototypes, and classroom sensor labs. It is intended for non-contact ranging experiments where simple trigger/echo wiring and fast replacement matter more than sealed industrial packaging.
Key Uses
- Trigger/echo interface for microcontroller projects
- Useful for near-field obstacle detection and distance labs
- Compact PCB format for small rover and arm fixtures
- Good starter sensor for education, service robot mockups, and QA benches
Technical Notes
- Interface: digital trigger/echo
- Typical use: short-range non-contact distance sensing
- Recommended controller: 5 V logic microcontroller or compatible IO board
- Mounting: two-board transducer module with PCB mounting holes
What Is Included
- 1 x ultrasonic sensor module
- 1 x integration note sheet
- Basic wiring label set
Image source: Image: Suyash Dwivedi, CC BY-SA 4.0, via Wikimedia Commons. Source: Wikimedia Commons.





