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
Searching_Ut wrote:
...The hall effect sensors simply detect magnetic fields. you'd be surprised what you can do with a modern cell phone. The compasses are even sensitive enough to use to detect current through DC wires when you hold it close to the wire and switch things on and off you'll see the compass jump if the wire is carrying any significant current. ....
CJW8 wrote:
Hall affect will measure any magnetic field, whether it is from a electro-magnet or a permanent magnet. Both my iphone and my android detected a small magnet.
Thanks for that info.
