SparkFun Linear 3D Hall-Effect Sensor - TMAG5273 (Qwiic)

Jargon buster

Plain-language definitions for the technical terms used above.

breakout

A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.

deep sleep

Deep sleep is a low-power mode where the microcontroller turns off most functions while keeping just enough circuitry active to wake up later. It is important for battery-powered projects because it can greatly extend how long the device runs between charges.

encoder

An encoder is a sensor that converts the rotation or position of a shaft, knob or dial into electrical signals, reporting movement as incremental steps and direction, or as an absolute position. It is used to track how far something has turned, which matters for precise positioning, speed control, repeatable movement, or using a rotary knob as an input.

GND

GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.

Hall-effect sensor

A magnetic sensor that changes its output when it detects a magnetic field. It matters for projects that need to sense magnets, wheel rotation, position, or current without physical contact.

LSB

Least significant bit (LSB) is the lowest-order bit in a binary number, the bit that some serial protocols send first or last. In analogue-to-digital and digital-to-analogue converters, one LSB also means the smallest step the device can resolve, equal to its full-scale range divided by the number of steps.

Qwiic

Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.