Category: Arduino

Arduino Primer

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On behalf of SPHERE, I was asked to run a Arduino Primer for Bristol University Medical students.

Wireless XBee Modules

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So have purr-chased a pair of XBee Pro Si modules for mounting onto Arduino Wireless Proto boards.  Although I’m still trying to decide what I might use them for ultimately I decided today to get them talking to each other.

Arduino Capacitive Switches

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When I saw this Arduino capacitive switching demoed at UWE, Bristol I was sold on the little board. Pinball with paper clips and Maltesers!

Circuit 06 – Piezo Tunes

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Having explored Motion, Light and Electrons we are now going to look at Sound using a simple circuit consisting of a single Piezo element.  Even though the output of the Arduino is digital because of its speed it is possible to produce music by pulsing a piezo element at the right frequency.

Circuit 05 – Shift Register

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Shift Registers are a type of Integrated Circuit (IC) or chip.  The Shift Register is a serial to parallel convertor that allows us to control eight additional output pins with just three on the Arduino.  You can link them together to give you even more (unlimited) outputs! A Shift Register works by clocking in the data and […]

Circuit 04 – Servos

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Servos can be used for lots of things where a great detail of control is needed such as steering RC vehicles, robotics and freaking out small children with moving dolls.  Standard Servos like the one provided by Oomlout travel through 0 to 180 degrees with positioning controlled via a timed pulse.  Timing varies with manufacturer but for […]

Circuit 03 – Transistors and Motors

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The Arduino will allow you to attach low power devices directly to its pins but items such as motors requiring more power require a transistor. A Transistor allows you to switch big volts using little volts. In circuit 03 we wil be switching a motor. It uses a 1N4001 diode to act as a flyback […]