This is my attempt to show how I did to hack a particular chinese parking sensor model.
Firstly I no ittention to make a code compatible with every chinese parking sensor available on market.
The parking sensor I bought from a seller called Nuoyun or QXNY on Aliexpress.
The model is not the cheapest available on Aliexpress but I like the display model. Moreover using a very specific model can help users to always buy a compatible parking sensor.
All that I have done was based on experiences of other people that I have found over the internet.
The main reference that I have used was the code provided in Arduino forum by Dan Lavin.
For more information check this topic in XDA forum.
I have created a repository for Android App here.