A PCB (Printed Circuit Board) is a substrate used to support and electrically connect electronic components using conductive tracks, pads, and other features etched from copper sheets laminated onto a non-conductive substrate.

A device that provides electrical power to an electrical load by converting electric current from a source to the correct voltage, current, and frequency.

The iterative process of creating a preliminary model of a product for testing and validation.

A resistor used to ensure a known voltage level at a high-impedance input pin.

PWM (Pulse Width Modulation) is a technique for modulating the width of the pulses in a pulse signal to control power delivery to electrical devices.