Hall-effect sensor 49E The part number of the sensor commonly used in the KY-024 module is 49E which is a versatile Linear Hall-effect sensor that’s operated by the magnetic field from a permanent ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ...