Learn about how components such as resistors, capacitors, LDRs and so on work, look at circuit theory and how to use soldering tools.
The sun provides a huge potential source of energy for our planet. Average solar energy falling on the planet is around 1300 W/m2. This is roughly ...
Motors provide a clean way to convert electrical energy (such as from batteries) into mechanical energy (or movement.) This document explains what a motor is, a little of the theory about how it works, and shows some of the different types of motors.
Radio Control (RC) Servos are a simple way to provide electronically controlled movement for many projects. It does not refer to the more general, wide-ranging, description of a servo motor – that is a motor which has feedback control.
Printed Circuit Boards (PCB) are made from layers of fibre glass and copper, glued together. Whilst the glues used are very heat resistant it is possible to overheat a PCB and damage it. Learn how to repair a damaged one here.
The introductory guide to soldering explains what soldering is, contains lessons on soldering equipment, how to solder and how to look after your tools.
Two or more resistors when connected in series make up a potential divider circuit, this tutorial explains how they work and the voltage across them. Circuit diagrams, formulas, worked examples and some questions to test your understanding are included in the tutorial.
Have you ever made a mistake soldering? Heard of solder wick but not sure how to use it? Or perhaps you've seen a solder sucker but not sure if it's the right tool for the job. Join Kevin as he shows you show to remove solder.
LED brightness is controlled using a current limit resistor to drop some of the battery voltage, calculate the resistance using the formulas in this guide. A worked example shows the calculation used to work out the resistance to accompany an LED in a typical circuit using a 9V battery.
This calculator works out the resistor value to accompany an LED by entering the battery voltage along with the LED forward voltage and typical current. Parameters for Kitronik LEDs can be picked from a list and the calculator even recommend a preferred resistor value complete with colour bands.
Soldering is an essential skill in electronics, fortunately it is easy to get started. Just follow our 10 step guide and you'll be soldering in no time!
Interactive Learn & Test Zone: revise a particular topic, take a test, download the resource for future reference.
A guide to understanding how a power supply converts mains electricity in to low voltage DC supply. The tutorial covers both linear and switch mode power supplies.
What is an Intergrated Circuit? Who invented the Integrated Circuit? What are some examples of Integrated Circuits? How are they made?
A guide to using a Multimeter to measure voltage and current.
Ohm’s law is used to describe the relationship between Voltage (V), Current (I) and Resistance (R). In this tutorial you will learn about the formula that connects these three values, see some examples and answer some questions to test your understanding.
A guide to understanding how logic gates work.
A guide to understanding how a thermistor works. A thermistor is a component that has a resistance that changes with temperature. There are two types of thermistor. Those with a resistance that increase with temperature (Positive Temperature Coefficient – PTC) and those with a resistance that falls with temperature (Negative Temperature Coefficient – NTC).
A guide to using a thyristor as a latch.
A Darlington pair is two transistors that act as a single transistor but with a much higher current gain, this tutorial provides an example circuit with explanation about how the part is used.
A transistor in its simplest form is an electronic switch. This tutorial explains how a small amount of current can be used to switch on or off a much larger amount of current.