ESP32 garage parking sensor — BuildwithElectronics
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A VL53L1X laser distance sensor and three LEDs on an ESP32-C3 Zero show how close
your car is to the stopping point. Full write-up:
https://www.buildwithelectronics.co.za/blog/esp32-garage-parking-sensor

Build with PlatformIO (VS Code extension or command line):
  pio run -t upload        flash the board
  pio device monitor       watch the serial output (115200 baud)

Wiring: sensor SDA GPIO 5, SCL GPIO 6. LEDs through 220 ohm resistors:
green GPIO 2, yellow GPIO 3, red GPIO 4.

Set-up page: join the Wi-Fi network "ParkingSensor" (password "change-me-123" unless you changed it)
and open the address the board prints to the serial monitor at start-up
(a line like "WiFi AP: ParkingSensor  IP: 192.168.4.1" -- usually that
address, but use whatever yours shows). Change AP_SSID / AP_PASS at the
top of src/main.cpp before you install it.

Zone distances are ZONE_RED, ZONE_YELLOW and ZONE_GREEN at the top of src/main.cpp.
