Having experienced some major WIFI problems over the years, with the overly crouded 2.4 ISM band. I decided to dust of the good old CC2500 chip, and get it running, properly. The reason for this chip? the 8-bit RSS value you can acquire from it. These day’s, the very cheap NRF24L01+ is rather nice, and cheap, but with a 1bit RSSI ‘threshold’, not very useful for these kind of setups.
A friend had a noticed that his parking-sensors where no longer working from his BMW 1
After he examined his OBD, he noticed that the parking-sensory board wasn’t working properly (read missing)
So he searched in the manuals for the parking module. And this is what he found when he accessed the trunk:
It probably should look like a small pool, should it?