Printer PCB: Control Board Design and Manufacturing What the Board Does A printer main board turns a page description from a computer into a sequence of precise mechanical actions. It feeds a sheet to a defined position, moves a carriage or a scanner to the right place at the right…

Water Heater PCB: Control Board Design Guide What the Control Board Does A water heater control board reads the water temperature, decides whether the heating element should be on, drives the load that switches it, watches for faults and reports the state to the user. Replacing a mechanical thermostat with…

LCD Display PCB: Structure, Signal Path and Design What the Board Does An LCD display board sits between the outside world and the glass panel. It receives a video signal, converts it to the format the panel expects, distributes it to the driver circuitry, generates the timing that makes the…

LED Strip PCB: Design and Manufacturing Guide What an LED Strip Board Is An LED strip is a long, narrow circuit board carrying a row of surface mount LEDs, the resistors or drivers that set their current, and the copper that distributes power along the length. The board is the…

94V-0 PCB: UL 94 Flame Retardant Rating Guide What 94V-0 Actually Means 94V-0 is a flammability rating, not a material, a board type or a finished product certification. It comes from UL 94, a standard published by Underwriters Laboratories that describes how a plastic material behaves when it is exposed…

Bluetooth Speaker PCB: Design and Layout What the Board Has to Do A Bluetooth speaker board carries four different kinds of circuit at once. It receives a radio signal, decodes a digital audio stream, amplifies the result into a loudspeaker load, and does all of it on a battery inside…

Transparent PCB: Materials, Process and Cost What a Transparent Board Is A transparent circuit board is a printed circuit built on a substrate that light passes through, with conductors that are either thin enough or transparent enough to be nearly invisible. It is not a normal FR-4 board that happens…

DVR PCB: Structure, Functions and Design What a DVR Board Does A digital video recorder is the point where several camera streams arrive, are compressed, are written to storage and are served back to a screen or a phone. All of that runs on one board, and it runs continuously,…

Motion Sensor PCB: Design and Manufacturing What a Motion Sensor Board Is A motion sensor board is a circuit board built around one job: detect that something moved, decide whether the movement matters, and trigger a response. The sensor, the analogue front end that conditions its output, the microcontroller that…

Gaming Haptic Feedback PCB: Flex vs Rigid Why the Board Decides How the Game Feels Haptic feedback has moved from a single rumble motor to a feature that carries as much of the experience as the audio does. The strength of the vibration, the speed at which it starts and…