Permanent magnet assisted motor coil designs

[floodrod]

Quick question. I have a bunch of these hall sensor boards I ordered for the wrong purpose a while back. Pretty sure they are for arduino's. I don't have one. But I'm trying to use it anyway. I am simply just wanting to trigger an n channel mosfet with it. The pins are switched but it has built in LED and stuff is kinda of a nice bundle for tuning a pulse motor. But for some reason no matter how I hook these up, i can't get it to work. When I hook it up as shown assuming it is just the sensor itself, all I get is solid led lit. Any suggestions? I can just use a normal hall sensor, but I want to use these if I can. I am hooking it up assuming pin 1 is -, 2 is +, and 3 is signal. I want to power it from the same circuit, but I've even tried powering with separate power source. I immediately get the led to blink in a field like it's supposed to, but the signal still doesn't trip the mosfet??? I'm sure I'm doing something stupid. Any suggestions?

I use those exact ones all the time.  There is already a resistor on the board.

left pin goes to ground.  center goes to 5V.  Right pin will turn High and Low when magnet is in range.

Not sure about running 15V through it..  Might try hooking right pin labeled (S) to the gate.  Feeding 5V from usb plug into middle pin and ground to left.
The 15V would feed from a different supply.  And using your resistor on the mosfet only.

Edit-  Here is a pic

[captainpecan]

@floodrod
Thanks for the help. Still having an issue though. I am beginning to wonder if I have a bad batch. I can easily run the mosfet wit a reed, no problem. It's not like there are that many wires here. My biggest issue is that I got bad batch of reeds that are not working consistently at all. I got 1 good reed switch from before that works fine so I have it running on one set of coils only. For some reason I am not finding my other halls sensors to try... I'm about to clip one off the board and try it without the circuitry. Wondering if there is a cold solder problem or something.


Edit:.. yup. Bad parts. I got one working. How frustrating, I used most of my time messing with bad parts... oh well.

[seychelles]

YOU FIND THE ANSWER.

[captainpecan]

Yeah, thanks. I was doing it correct. I got some bad parts. I resoldered every joint on one and it works fine now. Just have to see if I can fix the others so I can move forward until I get new stuff in.

[captainpecan]

Wow, what a pain. I got some of those little hall sensor boards working by reflowing the solder. But they still seemed to be kind of constipated per say. The coils were pulsing but barely. Led was lighting bright. After many times of screwing with these things, I finally started digging in all my junk to find something else i can use. I finally found some simple 3144 hall sensors. I wired one up, hooked it up, and the coil pulses exactly as it should. But it still performs slightly better with the 1 reed switch i have that seems to work correctly. I guess i really did end up with all bad parts afterall. Finally moving forward. I wasted a lot of my free time playing with garbage. Fingers crossed there will be no more surprises this weekend.