Adafruit Large Ultrasonic (Sonar) Sensor with Horn and UART Output

This impressive-looking horn is actually an ultrasonic sensor, optimized for panel mount use. Inside is a module that emits high-frequency signals to accurately measure distances to surfaces, with a range of 28 cm to 750 cm and a resolution of 1 mm. The horn design guides the waveform for a further reach without excessive spread.

Features include a durable, weather-resistant build ideal for environments like garages, robots, or installations. The sensor has a 40-degree waveform cone spread, and while full readings reach up to 600 cm in constrained environments, it excels in open spaces. UART output allows connectivity to microcontrollers or computers via a TTL serial port, ensuring seamless data integration.

A 2mm pitch connector and an LED indicator simplify setup and operation. For usage, connect the red wire to 3 or 5V, black wire to ground, and wire #4 to your serial input pin. The blind zone is from 0 to 28 cm, so objects should be at least 30 cm away for accurate detection. Enhanced with Arduino and Python sample codes, this sensor is perfect for rapid prototyping and sophisticated applications.