This vibrant blue DIY ultrasonic sensor kit
Experience the thrill of building your own ultrasonic rangefinder with this sleek, compact blue circuit board. Measuring approximately 10 cm by 48 mm, it features a smooth matte finish and is equipped with colorful LEDs—red, yellow, green, and orange—that visually indicate distance changes. The clear 7-segment digital display offers real-time readings within 40 cm, making it easy to monitor obstacle proximity. Two shiny silver ultrasonic transducers are aligned at the front, giving it a modern, industrial look. The kit includes a black adjustment knob and a black plastic battery holder, which requires three AA batteries (not included). Perfect for DIY enthusiasts, this module blends technical precision with stylish design to elevate your projects.
Keys features of the this ultrasonic rangefinder kit
- Operates at 4.5-6V DC supply, measuring distances up to 40cm with high accuracy. Designed specifically for short-range obstacle detection applications in DIY projects.
- Features a digital 7-segment display that provides immediate, clear distance readout, making it simple to interpret measurements during operation.
- Includes dynamic LED indicators that adjust brightness based on proximity—fully illuminated at close range and gradually dimming as distance increases—offering intuitive visual feedback.
- Built-in buzzer produces a sharp alert at close distances, complemented by a softer tone when objects are farther away, providing reliable double-layer warning.
- Designed with DIY-friendly soldering markings on the circuit board, enabling easy assembly and customization for hobbyists and electronics learners.
- Measures 10 x 48 x 30 mm, features highly visible color LEDs, a sleek silver ultrasonic transducer set, and supports power using common 1.5V AA batteries.
Enhance your projects—buy this ultrasonic kit today!
Imagine now having this compact, stylish ultrasonic rangefinder integrated into your DIY obstacle avoidance or distance measurement system. Its modern design and user-friendly features make it ideal for experimentation and innovation. Whether you’re enhancing a robotics project or creating a custom sensor device, this module provides reliable, real-time distance data with visual and audible alarms. Grab this easy-to-assemble kit to bring your ideas to life—it's a perfect choice for enthusiasts eager to expand their skills and create functional electronic systems with confidence.



















