Sensing a New World


Application Notes

AN-10 API Interface Specification – This application note provides details of the API interface for the OPS241 and OPS242 as well as how to connect it to your PC, phone, or tablet.

AN-11 Cosine Error Adjustment– This application note details the cosine error associated with the speed measurement and how to correct for it.

AN-12 Android Phone Radar Gun – AN-12 describes how to turn your Android phone into a radar gun to capture the speed of cars or other interesting objects in the field of view.  See the available APK file below.

AN-13 OPS241 Code Update – AN-13 provides a step by step process for updating to the latest code for the OPS241 and OPS242.  Contact Customer Service to get the latest version of code.


Software Support

USB Driver – Typically the USB driver in Windows, Mac, and Linux computers will automatically connect to the OPS241 and OPS242 radar sensor.  If not, this driver may be installed on your computer to make a connection.

Android Radar Gun app – This app allows you to easily see the speed of objects in the OPS241 and OPS242 field of view on an Android phone/tablet supporting USB-OTG.  Use the OPS100 OTG cable connected to the Android phone/tablet and the supplied USB micro cable .  Note this is the APK file only and has not gone through Google certification.

Raspberry Pi LCD Speed Display – Python code which runs on a Raspberry Pi with a small LCD screen.  The code takes in the data from the OPS241 and OPS242 plugged into one of the USB ports and displays the measured speed.  The data is input as a serial port over USB.

ROS drivers for Lunar and Kinetic – Integrated drivers into the ROS build can be used to take in data from the OPS241 and OPS242 for robots using the ROS operating system.  A good readme file can be found here.


Code Releases

V1.2.0 – Updated API for to support OPS242, additional output control including magnitude and multi-output reporting.  Smaller 256 buffer size support.  Contact Customer Service to request the file.

V1.1.1 – Updated API for buffer size control, frequency setting, farther range detection (up to 25m).  Contact Customer Service to request the file.