Need a higher tech, but inexpensive solution DIY solution to assist with parking in a consistent location? This project uses a low-cost ESP8266 and a strip of WS2812b LED pixels to replace that old tennis ball on a string you have hanging from the ceiling now! And if you have Home Assistant or another automation system, you can optionally enable MQTT to use the system as a vehicle presence system.
An overview of the project can be seen in this YouTube video.