# Panel Mount Ultrasonic (Sonar) Ranging Module with UART Output

**Type:** Product page · **SKU:** ADA4665 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/panel-mount-ultrasonic-sonar-ranging-module-with-uart-output.html ([markdown](https://core-electronics.com.au/panel-mount-ultrasonic-sonar-ranging-module-with-uart-output.html.md))

This sleek looking 'button' 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.

## Pricing

- **Price:** $35.10 (inc GST) — $31.91 AUD, exc GST
- **Quantity discounts:** 10+ $30.95 (exc GST) · 50+ $30.31 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## Description

This sleek looking 'button' 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. It's elegant looking and is more durable than the 'raw' ultrasonics Adafruit 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 450 cm with a read resolution of 1mm (precision is 1 cm).

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](https://core-electronics.com.au/usb-to-ttl-serial-cable-debug-console-cable-for-raspberry-pi.html) 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 5V, black wire #2 to ground, skip #3 and connect #4 to your serial input pin and read the data in at 9600 baud. [Check out Adafruit's Arduino and Python example code to get readings in a jiffy!](https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/master/DYP_ultrasonics)

This sensor has a 'blind' zone distance of 0 to 28 cm, that 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.](https://core-electronics.com.au/search/?q=distance+sensors)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/4/6/4665-02.jpg)