A magnetometer is a scientific instrument used to measure the strength and direction of magnetic fields.

A microcontroller is a compact integrated circuit designed to govern a specific operation in an embedded system.

MISO stands for Master In Slave Out, a signal line used for communication in Serial Peripheral Interface (SPI) protocol.

MOSI (Master Out Slave In) is a unidirectional data line used in SPI communication protocols.

An electronic measuring instrument used to measure voltage, current, and resistance.