Sqword – Android Game

Sqword is an android game I have been developing. You connect letters to create words. Use powers and compare scores with your friends. You can get Sqword from the android store. The aim of the game is to make words and get as many points as possible before the time runs out. In order to …

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RFID Card reading on the Arduino

RFID tags can either be passive, active or battery assisted passive. The active or battery assisted passive tags will transmit an ID where as the passive RFID tags have to be powered via the reader. I took a look at a cheap RFID reader for the arduino, the RF10-RC522 which can be purchased for around £5 …

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An Initial Look at the Chromecast

The Chromecast is a remote free way of streaming video content to your TV controlled by a laptop or smart device. An initial look at the Chromecast has shown me that is has been well thought out and for $35, I believe is an absolute bargain for enabling media streaming on a non-smart TV. The …

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Speeding up Ubuntu with Lubuntu

I changed my Ubuntu desktop from unity to LXDE. Unity and LXDE are both Ubuntu desktop alternatives. LXDE is a cut-down desktop environment using lower specs and so can run faster on older computers or when using Ubuntu within a virtual machine. Speeding up Ubuntu with Lubuntu becomes possible with only a few commands. Lubuntu is …

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Arduino HC-SR04 Ultrasonic Range Finder

Arduino HC-SR04 Ultrasonic Range Finder

I recently purchased the Arduino HC-SR04 Ultrasonic Range Finder. You can purchase this item for around £5 and you can use it to calculate the distance from the range finder with an accuracy of 2-400 cm. Although fuzzy in the picture the pins are labelled as such. I have also included instructions on how you can …

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Raspberry Pi Stream Webcam to Apache Server

To Stream Webcam to an Apache Server on the Raspberry Pi you need to have already: Installed Apache – See this post. Installed the Camera Module – See this post. After you have done this you are ready to start. First Step – Install FFmpeg You should download, compile and install FFmpeg, a cross platform solution …

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TMP36 Thermometer on the Arduino

This post explains how you can read the temperature using a TMP36 Thermometer on the Arduino. The TMP36 thermometer is inexpensive (~£2.00) and can measure temperature from -40°C to 125°C. As the image above shows, to wire the TMP36 you connect the pins as instructed above to your Arduino. Be careful you get the 5v and …

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Upgrading Raspberry Pi SD Card Size

This post explains how you can go about upgrading Raspberry Pi SD card size. You are likely to use this if you have already got your raspberry pi working but need more storage  or a faster SD card. The guide is aimed at windows users but has instructions for Linux and mac users. Step 1 …

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Adding Virtual Box Shared Folders

Before starting ensure that you have updated VirtualBox to the latest version. Adding Virtual Box Shared Folders is easy but can be frustrating if you have not done it before. The guide assumes that you are trying to add shared folders on a Linux virtual machine. First Step – Install Guest Additions The first step is …

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Read multiple buttons with one Arduino pin

Using a resistor network it is possible to Read multiple buttons with one Arduino pin using an analog input pin. This is achieved by creating a resistor network so that each button will have a different voltage reading when pressed. Here is an example to read 4 buttons read with one input port but there is …

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