This ultrasonic radar project is from [mircemk] who uses a small ultrasonic distance sensor attached to a rotating platform. A motor rotates it around a 180-degree field-of-view and an Arduino ...

One way to accomplish this involves four HC-SR04 ultrasonic sensor units that transmit data through an Arduino into a Linux computer. The end result is a virtual touchscreen that can be made at home.

The company intends to restore these features once they perform equally well using its camera-based system. As with the removal of its ultrasonic sensors, the removal of radar last year resulted ...

a front-facing radar, and several ultrasonic sensors all around its vehicles. The transition to Tesla Vision means shifting to only use camera-based computer vision in the Autopilot system instead ...