I have found posts in this forum from about 4 - 5 years ago that detailed at least one successful project that interfaced a Raspberry Pi 4 with an Optisense OPS243-A doppler radar sensor, for the purpose of accurately measuring and documenting vehicular traffic speeds, and correlating those speed readings with photos of individual vehicles (obviously a Pi camera was also used). That is exactly one of my current projects. I want to monitor speed limit violations in front of my residence for the purpose of providing justification to request a traffic safety study to be conducted here. The OPS243-A can be purchased for ~250 USD, which is also the price of an apparently more recent OPS243-C device. If that is what I need to spend, I will do that, but I thought it might be reasonable after 5 years to ask if there is a competing device that can do a similar job (0.5% accuracy; ~20 degree sensing aperture; 100 yard range; relatively easy interface with Raspberry Pi) for a smaller investment. I also wanted to ask if I would likely encounter any serious issues if I tried to interface a similar device with a Pi 5, instead of Pi 4, and whether a Pi 5 would likely constitute overkill for the project. Thank you in advance for any help you provide.
Statistics: Posted by DonUWannano — Mon Feb 09, 2026 9:01 pm — Replies 1 — Views 23