MLX90393 module is a powerful, versatile, ultra-small, universal 3D hall effect sensor module that can be easily fitted into any DIY projects where 3D position detection is required.
MPU-9250 is a multi-chip module (MCM) consisting of two dies integrated into a single QFN package. One die houses the 3-Axis gyroscope and the 3-Axis accelerometer.
This LM75 Temperature Sensor Module is specifically designed for the Banana Pi but it can also be used with the Arduino. This module uses the NXP LM75 Temperature IC.
A reed switch is a sensor that closes the circuit in the presence of a magnetic field. Reed sensors can be used in many applications where contactless on/off is required.