what's the best way to detect the magnet? Use anther magnet. But it's not sensitive enough. You have to feel it by youself.Right.This magnetic sensor knows whether there is a magnetic object nearby or not. And it correctly tells you through ditigal output.See below picture for a quick demo! Features: Wide voltage range from 3.3V to 5V Standard assembling structure (Times-of-5mm Center distance between two 3mm mounting holes) Easily recognitive interfaces of sensors ("A" for analog and "D" for digital) Icons to simplely illustrate sensor function High quality connector Immersion gold surface Specification: Supply Voltage: 3.3V to 5V Indicator LED on board Interface: Digital Size:22x30mm (0.9x1.2in) Documents: Wiki Doc Schematic Product Includes: Digital magnetic sensor x1 Digital cable x1
