Freetronics: Arduino-Compatible Electronics Kits & Parts

Here at Freetronics we design, sell and support our range of flexible, easy to use boards and modules, making it easy for you to build your own electronic projects.

What Is Arduino? Arduino is a very popular and easy to use programmable board for creating your own projects. Consisting of a simple hardware platform and a free source code editor with an easy “one-click compile/upload” feature, it’s designed to be really easy to use without being an expert programmer. Arduino is also the most popular microcontroller board for advanced users and all kinds of more ambitious projects.... Read more

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Arduino Kits Online

Looking for an Arduino kit online then you have come to the right place. We design, sell and supply electronic components which are arduino components.
For Arduino kits in Melbourne then always go for Freetronics.

Arduino parts online

If you need Arduino parts online our store has a wide range of kits and parts. Arduino melbourne, arduino uno, arduino duemilanove usb

Arduino duemilanove

We have lots of Arduino electronic components like ethernet shield, arduino mega usb and buy usbdroid

Microcontroller Boards

We sell a huge range of microcontroller boards which will be compatible with adruino electronic components


April 23, 2015

Concurrently monitor data from multiple Raspberry Pis with Initial State

Using a combination of a cloud-based data visualisation service and multiple Raspberry Pi computers you can easily monitor data from each Pi concurrenlty on the one screen - ideal for monitoring various sensors placed in multiple sites. A few years ago this may have seemed impossible or very expensive, however nothing could be further from the truth.

The people from Initial State - "a technology startup helping engineers capture and understand product data" - have produced a neat tutorial that explains how to use popular DS18B20 digital temperature sensors each with a Raspberry Pi, and how to send the data back to their cloud service. Both hardware and software requirements are explained which will have your system working very quickly, and leave you with a neat and useful dashboard - for example:

For complete information on this project, and other interesting ideas - visit the Initial State website. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well. 

If you're interested in measuring termperature with a reliable sensor - consider using our TEMP: DS18B20-based temperature sensor module:

The TEMP: uses the Dallas DS18B20 1-wire digital temperature sensor, with a wide measurement range of -55 to +125°C at an accuracy of +/- 0.5°C. For more information, tutorials and to order - visit the TEMP: page

April 10, 2015

alertR - the Raspberry Pi unified alerting system

After starting to build an alarm system based on a Raspberry Pi, Andrew Pawlowski realised that so much more was possible, and as created a neat unified messaging system which can be used in all sorts of applications. His system - named "alertR" - can be integrated with all sorts of devices and control a wide variety of devices.

Furthermore a sequence of control based on various events can be setup to make life easier - for example if a doorbell is pressed the volume on a sound system can be reduced, or a security camera could take an image. Check out the following video for more information: 


Finally Andrew has made his project open-source, so you can find out more by starting with his github page. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well.

If you're looking for a neat way to add external circuitry to your Raspberry Pi model A+, B+ or 2 model B then check out our new PiBreak Plus Raspberry Pi Prototyping Board:

This is a great way to add your own electronic components, circuitry, sensors or other devices to your Raspberry Pi model A+, B+ or 2 Model B - any of the current Raspberry Pis with a 40 pin GPIO header. The PiBreak Plus also includes a GPIO female header to solder yourself, and a pair of nuts, bolts, washers and spacers to ensure a a great fit.

And in the Freetronics fashion we've used a quality gold-plated (ENIG) PCB for durability, brought out all the power rails along with the GPIO next to the prototyping area to make adding circuits a breeze. Furthermore the pinouts are labelled on both the top and bottom of the PCB to save time referencing the right GPIO pins. For more information and to order - visit the PiBreak plus page now!

April 21, 2015

Examine simple waveforms with the Arduino-powered notscilloscope

Next in our line of interesting Arduino-based test equipment projects is the "notscilloscope" by Augusto Campos. This is a neat way to display the amplitude of a signal over time - just as you could with an oscilloscope, however at a slower speed. However this is still a neat way to not only practice your Arduino skills but also understand the basics of how an oscilloscope works.

The notscilloscope can measure waveforms that fall between zero and near the operating voltage of the Arduino or compatible board being used, with the user being able to adjust the centre of the display and also the default amplitude - and an "auto" button can quickly optimised the display of currently-measured data. Check out the following video for a neat demonstration:

For more information and the Arduino sketch, visit Augusto's github page. And for more, we're on facebook, twitter and Google+, so follow us for news and product updates as well.

If you're looking for a neat and colourful display to use with your Arduino or Raspberry Pi - consider our 128x128 pixel OLED Module. With a diagonal size of 1.5" and 16,384 colours to select from, so almost anything is possible. Furthermore there's a microSD card socket, and removable tabs on each side which can hold LEDs and buttons:

And using the module is made simple - we have tutorials and drivers for both the Arduino and Raspberry Pi platforms - great for experimenters or those who use both systems. Furthermore, check out the forum where members are already creating modified drivers to rapidly increase the display speed. For more information including our Quickstart guides - and of course to order - visit the OLED Module product page.

April 20, 2015

Make an Arduino-powered Ohm Meter

As we always say at Freetronics - making your own test equipment is always a fun and educational process - as you can not only create something that is useful, along with learning a lot more about the targets of the equipment. Another great example of this is by Ritik Bhardwaj who shows how incredibly simple it is to make an Arduino-powered Ohm-meter (a device to measure the value of a resistor).

The device works on the principle of the voltage divider circuit, and with a little algebra and know input voltage (say 5V from the Arduino) it can calculate the resistance of the compinent under test. It's quite simple and it works, and a neat way to experiment with voltage dividers and electronics theory. The value of the resistor under test can be sent to the serial monitor or to an LCD as shown below:

For more information on making your own version, visit the project's Instructable page. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well.

Looking for a rapid-use LCD for your Arduino or compatible development boards such as the example above? Save time and move forward with the Freetronics LCD & Keypad shield which contains a bright 16x2 character LCD and five buttons that can be read from only one analogue input pin:

April 16, 2015

Experimenting with Android control of Arduino via Bluetooth

The ability to have a smartphone interact with an Arduino-based project is certainly a great feature to harness, however the process of doing so may seem overwhelming - especially creating the app for the Android device. However thanks to the free MIT App Inventor software - a graphical drag-and-drop development environment, you can easily make your own Android apps that can communicate with a Bluetooth-equipped Arduino.

To make this even easier, the people from ForceTronics have explained not only the hardware connection between the Arduino and Bluetooth module - but also provided the code for both the App Inventor and Arduino sketch. Finally the method of creating a simple Android app to toggle a digital output on the Arduino is shown in the following video:

This offers you the gateway to more interactive projects and adding a professional user-interface, so to learn more visit the tutorial website. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well.

As part of the Arduino and Bluetooth experience you'll need a Bluetooth device for your Arduino projects, and to meet this need we've released our new Freetronics Bluetooth Shield:


We've made it simple to use - the Bluetooth Shield acts as a serial link between the other Bluetooth device. Furthermore there's a wide range of jumpers allowing you to select which digital pins to use for data transfer, increasing compatibility with other shields. And with our Quick Start guide it's easier than ever.

Our Bluetooth Shield for Arduino is now in stock and ready to ship, so for more information and to order - visit the shield's product page.

April 13, 2015

Make your own Arduino-controlled "Egg Bot"

The "Egg Bot" is a robot kit from Evil Mad Science that offers the ability to draw patterns on to an egg or similarly-shaped object. And thanks to the open-source nature of the project there are several variations being published, one of which by Nikodem Bartnik.

This version is just as simple to make as the original, and relies on a limited amount of hardware which you can locate quite easily in hardware stores and other suppliers. When it comes time to print on the egg, the design is created in the open-source drawing program Inkscape with the Egg Bot extension, which generates the necessary files to be sent to the Arduino-based hardware and electronics. A neat demonstration of Nikodem's version can be seen in the following video:

For complete details on making your own version, check out Nikodem's Instructable page. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well.

If you're looking to develop projects based on an Arduino that use stepper motor, CNC machines on a larger scale, and much more - simplify the process with our Freetronics StepDuino board:

The StepDuino is a complete, self-contained Arduino-compatible board with 2 onboard stepper motor drivers, 2 servo outputs, a 20x4 LCD, a micro SD card slot, and more! It's a fantastic general purpose board for any project that uses stepper motors. You can use it as the brain of your next robotics project!

The StepDuino uses the same processor architecture as the common Arduino Uno, so you can program it right from the Arduino IDE simply by selecting "Arduino Uno" as the board type. Everything simply works out of the box, just as it would with a regular Arduino - but now you can also drive steppers directly and display feedback on the huge LCD. For more infromation, tutorials and to order - visit the StepDuino page.

April 14, 2015

Experimenting with Arduino-powered Capacitance Meters

Making your own test equipment is always a fun and educational process - as you can not only create something that is useful, along with learning a lot more about the targets of the equipment. A good example of this is a series of Arduino-based capacitance meters which have been documented by Scott Campbell.

The reason for offering a series of meters is that not one could cover the range of capacitors that are commonly used by enthusiasts, and Scott's testing has shown which value ranges are best measured with different techniques. Furthermore the theory behind maesuring a capacitctor is also explained so you can expand with your own versions.

Even if you're not interested in making your own meter, Scott's tutorial is a good read on theory and capacitor discharge rates, so head over to his website to get started. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well.

If you need to add external hardware or devices to your next Arduino project, you'll need a protoshield to mount the external circuitry. In doing so, consider our range of ProtoShields. From the tiny LeoStick to the Mega we have a wide range to suit your application.

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