Instructables Projects: Inc. Session 15/02/2018

Working with Ollie Saunderson, we decided to built an instructables project using the Arduino Uno board.

We did find some simple projects, however some of these required an IC component which we didn't have. As we were restricted with components, we decided to find and create a project that only used  LED's, resistors, wires and buttons/switches as these were easily accessible.

The first project we decided to attempt, used a potentiometer which controlled the brightness of the LED's and a button to switch the LED's on and off. Unfortunately we couldn't find a potentiometer amoung the components given and therefore attempted this project without using one. However, this circuit didn't work. This may have been due to the circuit not being able to connect up correctly as it was missing a component or the incorrect resistors were used etc.


LED Flash Flasher Circuit

The second project we decided to attempt, was an LED flag flasher circuit which used LED's and resistors. By coding, and uploaded the code to the Arduino board - this project worked successfully as the LED's flashed as programmed.


Below displays a video of our working LED circuit.


Circuit diagram taken from instructables explaining where to place the components and wires on the  solderless breadboard and Arduino Uno board.


Development

We decided the develop the project further by adding double the amount of LED's and resistors to flash on the board.


We mainly used our code from the instructables website however, this image below displays a small amount of developed code, where five new pins are added to the code so that all the new LED's added to the board had functionality.


Limitations

Unfortunately due to the component limitations, we had to compromise with the resistors values. The circuit on instructables required 240 Ohm resistors while the closest we could find was 220 Ohm resistors and therefore attempted to use these instead. Luckily this worked and the LED's didn't 'blow up' as too much charge was running through them.

Additionally as we were new to the program and programming language we couldn't code from scratch and therefore had to mainly use the code given on instructables. This wasn't a huge problem as the code provided was quite simple and easy to understand. Moreover, some of the code was commented so we were able to understand what the purpose of the code was. Moreover we had difficulty with uploading the code to the board, which was due to the code being uploaded to the incorrect port.

Bibliography & References
[1] http://www.instructables.com/id/Simple-Arduino-LED-Flag-Flasher/

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