That’s right, these parking sensors are powered by an Arduino board, and the only extra components that were used in the project are a HC SR04 ultrasonic sensor, an active buzzer, and jumper wires.

Lastly, the evolution of ultrasonic sensors for vehicle parking applications is shown in Figure 7. Figure 7. Evolution of ultrasonic sensors for rear sonar. Nearly half the new vehicles in Europe and ...

Also found are a bunch of J3Y (S8050) transistors, plus four tunable “ultrasonic” transformers. Surprisingly, the ultrasonic sensors are waterproof two-pin transducers, and it seems that the design ...

Modern RC cars can be pretty darn fast. That’s fun and all, but it also makes it easy to crash them into things. This problem inspired [Narrow Studios] to whip up something to offer a bit of ...