David Marriott, Spectra Symbol CEO

Analog Digital Ground Separation on Mixed-Signal PCBs: How to Preserve Clean Analog Signals Author: David Marriott, Spectra Symbol CEO Can I trust this reading by the time it reaches the ADC? That question surfaced again and again in conversations with engineers. Concerns about grounding, signal integrity, filtering, cable routing, and digital switching noise all pointed […]

How to Wire a Potentiometer: Step-by-Step Diagrams for Any Application Author: David Marriott, Spectra Symbol CEO Potentiometers typically have three terminals, with the center pin serving as the wiper. Wiring depends on your specific application, but most uses fall into one of two categories: voltage divider mode (most common) or rheostat mode. This guide provides

Flex Sensor Do’s and Don’ts: Building More Reliable Systems with SpectraFlex Sensors Author: David Marriott, Spectra Symbol CEO Capturing the nuance of a human gesture is an engineering feat that lives or dies in the millivolts. If you want your project to feel like an extension of the body rather than a clunky prototype, you

What Does a Potentiometer Do? A Practical Explanation for Beginners Author: David Marriott, Spectra Symbol CEO In a world obsessed with ‘digital,’ we often forget that humans are analog. We don’t move in steps; we move in flows. If you’ve ever fought with a laggy cursor on an old screen, you know how quickly a

How Magnetic Position Sensors Work: Non-Contact Operation with Spectra Symbol’s MagnetoPot Author: David Marriott, Spectra Symbol CEO A guide on our heavy-duty MagnetoPot for harsh industrial and DIY applications At a Glance: The MagnetoPot Solution   The MagnetoPot is a sealed, externally contactless linear position sensor that functions electrically as a simple 3-wire potentiometer. It

Exploring Spectra Symbol’s Potentiometers Author: David Marriott, Spectra Symbol CEO A comprehensive guide to what a potentiometer is, how it works, and how different Spectra Symbol products compare — with examples and project ideas. I. Introduction — What Is a Potentiometer? If you’ve ever adjusted the volume on a radio or dimmed a light, you’ve

How to Use a Potentiometer with Arduino (Uno, Mega, Nano): Using a Soft Potentiometer as a Practical Example Author: David Marriott, Spectra Symbol CEO Potentiometers remain one of the most common input devices in Arduino projects—and for good reason. They’re simple, reliable, and require minimal code to integrate. Whether you’re adjusting LED brightness, controlling servo

Variable Resistors Explained: Potentiometers, Rheostats, etc. Author: David Marriott, Spectra Symbol CEO The terms variable resistor, potentiometer, and rheostat describe related concepts, but they aren’t interchangeable. Think of variable resistor as the broad category, with potentiometer and rheostat as two common configurations—not competing parts. Clear terminology helps you select the right component, wire it properly,

How to Test a Potentiometer: A Beginner-Friendly Guide Author: David Marriott, Spectra Symbol CEO A simple, step-by-step guide to help beginners test mechanical and membrane potentiometers using a digital multimeter Potentiometers look simple from the outside, but when you’re troubleshooting a new build or restoring an older project, they’re one of the first components worth

How to Use a Potentiometer: Practical Examples and Uses Author: David Marriott, Spectra Symbol CEO Learn how potentiometers work and see real-world examples of Spectra Symbol sensors in action. Potentiometers sit at the heart of motion control by turning physical movement into precise electrical feedback. From linear sliders to thin sensing strips, they convert position