Sensing a New World


Application Notes

AN-10 API Interface Specification – This application note describes the details of the API interface for the OPS241-A 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.


Software Support

USB Driver – Typically the USB driver in Windows, Mac, and Linux computers will automatically connect to the OPS241-A 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-A 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-A plugged into one of the USB ports and displays the measured speed.  The data is input as a serial port over USB.