https://www.poeticoding.com/tag/esp32/Recent content in esp32 on PoeticodingHugoenWed, 23 Jul 2025 16:35:28 +0000https://www.poeticoding.com/build-a-parking-sensor-with-esp32-board-leds-and-ultrasonic-distance-sensor/Wed, 23 Jul 2025 15:27:53 +0000https://www.poeticoding.com/build-a-parking-sensor-with-esp32-board-leds-and-ultrasonic-distance-sensor/<h2 id="what-problem-am-i-trying-to-solve">What problem am I trying to solve?</h2> <p>My garage was built for cars from another era: inside it’s about ~<strong>4.8 m long × 2.5 m wide</strong>, and the entrance narrows to <strong>just 2.2 m</strong>. My car, on the other hand, is <strong>4.7 m long and almost 2 m wide</strong>, so squeezing it through the doorway is just step one. Even if I make it in without scraping the sides, I’m stuck: there’s almost no room between the car and the side walls, so I can’t open the door or shut the garage door behind me. I need to use every last millimeter of length, but no matter how gently I press the pedal, or how much I rely on the factory cameras, getting the exact distance to the back wall is nearly impossible.</p>