Testing trailer brake controller....
Been working on this for days. I'm about ready to start screaming. (FYI, I am not in a good mood and any trolls looking to unload shaming or sarcasm or just generally embark on some kind of self-serv...
Forum Discussion
cannesdo wrote:You are correct, not funny.
...
See this....Not so funny:
https://www.quora.com/How-does-the-compass-on-the-iPhone-work
https://www.quora.com/How-does-the-compass-on-the-iPhone-work
.
My thinking is that the Hall effect sensor in the iPhone would not respond to an electrically generated magnetic field the same way a simple compas needle would ..... but I may be wrong. I would like to know if someone has tried it.
Keep in mind that most brake controllers will not put out voltage to the brakes if the vehicle not moving. They WILL put out voltage by moving the manual slider.
