Large Ultrasonic (Sonar) Sensor with Horn and UART Output
All prices are VAT included
This impressive-looking horn is actually an ultrasonic sensor, ready for panel mount use. Inside is a module that uses high-frequency signals to determine distance to a surface, and the horn helps guide the waveform so it can reach farther without spreading too wide. It's elegant looking and is more durable than the 'raw' ultrasonics we sell a lot of, so it would do well in a garage, robot, or installation where you want a durable dust and weather-resistant design. It has a range of 28 cm to 750 cm with a read resolution of 1mm (precision isn't specified, but it's probably about 5-10 mm). As you get to the longer distances, it's important to take into account the spread of the cone, which is about 40 degrees. We weren't able to get a reading of 750cm, but we did reach 600cm (in our small apartment).
This sensor has UART output, so it can connect to a microcontroller or microcomputer with a TTL serial port. You can also connect it to a computer using a USB-to-serial adapter and read data from the operating system's COM or serial port device.
It comes with a 2mm pitch connector you can cut off or re-purpose. To use, simply connect the red wire #1 to 3 or 5V, black wire #2 to ground, skip #3 and connect #4 to your serial input pin, and read the data in at 9600 baud. A blue LED on the back will blink with each reading. Check out our Arduino and Python example code to get readings in a jiffy!
This sensor has a 'blind' zone distance of 0 to 28 cm, which means it can't accurately tell when something is less than that distance away . it's best used when you know that the object you're sensing is at least 30 cm from the sensor!
We carry a large variety of distance sensors here if this fellow isn't what you're looking for.
