# Nicholson Electronics

> Practical electronics projects, circuit guides and interactive tools for beginners, students and experienced makers.

Nicholson Electronics is a public educational site by engineer Guy Nicholson and Claire Nicholson. Project pages contain the canonical build instructions, circuit diagrams, code, component lists and downloadable resources where available. All linked pages are server-rendered and readable without JavaScript.

## Featured project guides

- [Arbitrary Wave Form Generator using a Raspberry Pi Pico](https://nicholsonelectronics.co.uk/arbitrary-wave-form-generator-using-a-raspberry-pi-pico/): Build an arbitrary waveform generator with a Raspberry Pi Pico. This electronics guide covers the circuit, components, code and testing.
- [Build a simple yet sensitive metal detector](https://nicholsonelectronics.co.uk/build-a-metal-detector/): Build a metal detector - you never know what you could find! We'll show you the parts list & take you through steps to make it yourself.
- [Variable Tuning Capacitor](https://nicholsonelectronics.co.uk/variable-tuning-capacitor/): Build a homemade variable tuning capacitor for a medium-wave radio with this practical design, component guide and step-by-step construction notes.
- [QRP Power Indicator and Dummy Load](https://nicholsonelectronics.co.uk/qrp-power-indicator-and-dummy-load/): Build a QRP power indicator and dummy load for amateur radio homebrew projects. Includes the circuit, testing details and GitHub Gerber files for the PCB.

## More electronics projects

- [Wien Bridge Signal Generator](https://nicholsonelectronics.co.uk/wien-bridge-signal-generator/): Build a Wien Bridge signal generator and explore its oscillator circuit, components and construction with an interactive circuit explorer.
- [Unleashing the Power of Servo Motors: Offering Precision and Versatility](https://nicholsonelectronics.co.uk/servo-motor/): Discover the versatility and precision of servo motors, how they operate and how to control a micro servo in your own electronics project.
- [Weather Station and Automatic Plant Watering System](https://nicholsonelectronics.co.uk/weather-station-and-automatic-plant-watering-system/): Build an automatic plant watering system and weather station, with a parts list, circuit diagrams and complete Arduino code.
- [Using Fritzing for Printed Circuit Board Design](https://nicholsonelectronics.co.uk/fritzing-printed-pcb/): Learn how to use Fritzing to design and document a printed circuit board, from schematic and breadboard views through to a practical PCB layout.
- [Build a simple Arduino Oscilloscope](https://nicholsonelectronics.co.uk/build-a-simple-arduino-oscilloscope/): Build a simple Arduino Nano oscilloscope with this practical electronics guide covering the circuit, components, construction and testing.
- [Taking the next steps with Arduino | Electronics Projects](https://nicholsonelectronics.co.uk/next-steps-arduino/): The Arduino Uno can help you take the next steps in electronics and create more complex circuitry. Follow this practical introduction.
- [Build a logic probe](https://nicholsonelectronics.co.uk/build-a-logic-probe/): Build a logic probe - a must have for any electronics toolkit. We'll show you the parts list & take you through steps to make it yourself.
- [Soldering for beginners](https://nicholsonelectronics.co.uk/soldering-for-beginners/): Learn how to solder electronic components with practical beginner tips covering tools, technique, clean joints and common mistakes to avoid.
- [Build electronic circuits with stripboard](https://nicholsonelectronics.co.uk/using-stripboard-to-build-electronic-circuits/): Learn how to build reliable electronic circuits on stripboard, with practical guidance on layout, cutting tracks, fitting components and soldering.
- [Build an LED Torch](https://nicholsonelectronics.co.uk/build-an-led-torch/): Build a practical LED torch with this beginner-friendly electronics guide, including component choices, circuit construction and finishing tips.
- [Doorbell](https://nicholsonelectronics.co.uk/doorbell/): Fed up of replacing the batteries in your wireless doorbell? We'll show you how to make & design one!
- [Vintage Style Radio](https://nicholsonelectronics.co.uk/vintage-style-radio/): Build your own vintage style radio with this guide using modern day hand tools and components. We'll take you through each step.

## Interactive electronics tools

- [Raspberry Pi Pico Pin Explorer](https://nicholsonelectronics.co.uk/pico-pin-explorer/): Interactive 3D guide to the Raspberry Pi Pico's pins and functions.
- [Wien Bridge Circuit Explorer](https://nicholsonelectronics.co.uk/wien-bridge-circuit-explorer/): Interactive walkthrough of the Wien Bridge signal generator circuit.

## Site information

- [Project archive](https://nicholsonelectronics.co.uk/projects/): Browse every electronics project and practical guide.
- [About Nicholson Electronics](https://nicholsonelectronics.co.uk/about-us/): Information about Guy and Claire Nicholson and the purpose of the site.
- [Contact](https://nicholsonelectronics.co.uk/contact/): Contact Nicholson Electronics about a project or circuit.
- [XML sitemap](https://nicholsonelectronics.co.uk/sitemap.xml): Canonical index of all public pages.