Resources

Which Resistor Should I Use with my LED?

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.

Harnessing the Power of the Sun with a Solar Garden Light

Teachers are now looking for projects that allow students to consider sustainability, and, what better way to do this, than with a solar garden light?

Arduino - a Review of the Open-source Embedded Platform

What is Arduino? What do you need to get started with Arduino? What are the features of Arduino's hardware and software? What are the benefits of being open-source?

USB - The Easy Alternative to Batteries

Batteries have always been the obvious choice to power a school project, but with our USB lead this doesn’t need to be the case...

SparkFun Kits Now Available

A range of new kits and products from SparkFun Electronics have recently been introduced. These kits are typically more advanced than the kits that we currently sell and include the incredibly popular Arduino development platform.

Colour Changing Night Light - How It Works

Learn how to introduce Colour Changing LEDs to mood light projects.

IET Scout Light-up Greetings Cards - Project 1

Parts list for the IET Scout Light-up Greetings Card project.

Ask Kitronik Live Event - our Responses to your Questions

On Saturday 17th November 2012 we held an Ask Kitronik Live event, giving you the chance to ask us a question on just about anything (though hopefully electronics or design related). Here are our responses...