Arduino® is an open source hardware and software prototyping environment, but what does this mean?

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A handy little tool that can help you out if you work with LED’s a lot, especially if you are always trying to work out the right resistor to make them work.

Even individuals who aren't technologically inclined will find the XC0440 Wi-Fi Weather Station to be an accessible yet comprehensive tool. We demonstrate just how simple it is to install and set up.

There's a lot of arcade emulators out there that can run on many computers including the Raspberry Pi so it only makes sense to play these emulators on some authentic hardware. Here we'll show you how to build an arcade style joystick using our new Arcade Pushbuttons and Arcade Joystick. We've got a Leonardo main board to emulate a USB keyboard so it can be used with any software that you can play with a keyboard. Just like any other Arduino design, it can of course be customised to more buttons or even mapped to different keys. We've built ours in an ABS enclosure for portability but there's no reason you couldn't mount the controls directly to an arcade cabinet or even a coffee table.

Here’s a simple circuit, using just one relay and a handful of passive parts, that allows you to toggle (switch on or off) the relay off and on with just one pushbutton. It demonstrates some of the finer details of working with relays and can be used to control a wide range of devices. Over the years, we have had several requests for simple circuits that allow a relay to be switched on and off by pushing a button. Some readers sent in suitable circuits, but they all involved multiple relays.

This is more of an electronics lesson than anything else, We go over the fundamental electronics for building a complete circuit idea, discussing Ohm's law, Kirchhoff's law, analog and digital values, and the difference between website and embedded-C code.

This project demonstrates how two modules can be combined with a bit of extra circuitry to do a useful job. The result is a circuit that will power a load, like a fan, when the ambient temperature exceeds a set threshold.

We usually think of soldering irons, pliers and oscilloscopes when we think of electronic tools, and while this project may not be useful to the electronics enthusiast we think it's a good way of showing how Arduino based tools can be useful in other fields - in this case for musicians

Play around with the basics of Microbit.

This neat little project is a good way to learn about simple Arduino programming.

Control one or multiple power points with our IoT WiFi Power Switch Project

In this project, we explain Anderson 50A High Current connectors and how to use them to make different leads common in camping, caravaning and four wheel driving.

This is an easy project to assemble- just one main board and two shields, but gives a fully functional, easy to read clock display which retains the time, even when disconnected from power.

Wondered what goes into Solar charge controllers? And what makes MPPT better than any of the others? Find out yourself, by making this Solar MPPT Charge Controller project. Uses a simple Arduino Nano to control and regulate the flow of power from the panel to the battery, and has a output relay to automatically turn off when the Battery gets too low. A great project for DIY amatures and solar aficionados.

IR (infrared) remote controls have been around for about 50 years, with TV being one of the first major applications. They are used in many fields, so components and modules for IR remote control systems are widely available. Here’s how to use them to build an IR remote control extender.

Can’t find the remote control? Don’t worry! Clapping lets you switch devices on and off with this simple project. You may have seen it on TV; now you can build it yourself.

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Pump up the Jam with this beat bar! Get a visual display that bounces in tune with the music.

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Affectionately called "the smallie", this small particle collider will have you simply blown away with b-jet efficiency.