LinkZ
Newbie level 4
Hi, I need a normally closed switch which is opened when a magnet passes in front of the hall sensor. I found this schematic
but as you can see this is a normally open switch. My question is: can I change Q1 with a NPN transistor to make this circuit work as a normally closed switch? And BTW my relay is this: https://www.futurlec.com/Relays/HORN12VDCSPSTpr.shtml.
but as you can see this is a normally open switch. My question is: can I change Q1 with a NPN transistor to make this circuit work as a normally closed switch? And BTW my relay is this: https://www.futurlec.com/Relays/HORN12VDCSPSTpr.shtml.