Working with magnets and want a fast way to tell their NORTHs from their SOUTHs? So I decided to build an electronic one that meets that function.
Advantages:
This circuit is simple and practical, low power consumption. Fewer parts,and the line is simple and easy to understand.
Here is a record of my production process.
- Custom PCB x 1
- 44E Hall Effect Sensor x 2
- Reed switch MKA-10110 x 1
- 100Ohms 0805 SMD resistance x 2
- 100nF (104) 0805 SMD Capacitor x 1
- 0805 SMD LED Red x 1 / Blue x 1
- 3 AAA battery holder x 1
I made a PCB at JLCPCB.com, which makes it very easy to make!
