[Klaus] wanted some sort of aid for parking his car, and after running across a $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus]’ ...
An Arduino-based distance indicator that uses an HC-SR04 ultrasonic sensor and colorful LEDs to visualize object distance in real time. That’s exactly how this project started. I wanted to experiment ...
An Arduino UNO based distance meter. An HC-SR04 ultrasonic sensor measures distance, a 2.4"/2.8" TFT shield shows the live reading on a bar gauge, and a buzzer plus red LED alert when an obstacle ...
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