Magnetic sensor, Hall Effect Sensor at affordable cost - Xbotics
Hall-Effect sensor with a small size and economical price. Hall effect devices are operated by a magnetic field from electromagnet or a permanent magnet. The user must set souring output voltage by supply voltage. The output voltage varies in proportion to the strength of the magnetic field.
Hall Effect Sensor Module is used to Detect the proximity of a magnet. It is very much Smaller in size. When the magnetic field rises above a threshold level, the open-collector output transistor switches on, which pulls the logic-compatible output low and illuminates the on board LED indicator.
GY-271 HMC5883L 3-axis Electronic Compass Module is designed for low-field magnetic sensing with a digital interface and it is perfect to give precise heading information. This compact sensor fits into small projects such as UAVs and robot navigation systems. The sensor converts any magnetic field to a differential voltage output on 3 axes.