Using an Arduino

An Arduino system uses a type of digital logic which can be used to replicate the signals produced from analogue circuits using a smaller number of components.
Being able to program a system rather than relying on set functions from a IC (Integrated Circuit) can also allow your projects to be much more sophisticated.
For this session we will be using an ‘Arduino UNO’ board connected to a breadboard to control a number of LEDs. This will firstly be used to replicate an Astable and Monostable system.Firstly however, you need to learn about the Arduino UNO board as shown in Fig 1.

Fig 1

You now need to connect your Arduino board to a Breadboard (Fig 2).
Firstly connect a jumper wire from the Ground pin to the negative sides of your Breadboard and a jumper wire from the Digital Input Number 2 into the breadboard centre space as shown in Fig 2. Once you have done this you can then add a Resistor and an LED remembering to connect the negative side of the LED to the Negative rail on your Breadboard.
For a reminder about how to use Breadboards please see:
https://sites.google.com/sheffield.ac.uk/diamond-electronics/2-skills-for-electronics/using-prototype-board-breadboard

Fig 2

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