Design story

Please Empower this project:
[Total: 44 Average: 4.9]

Empathies - STEAM Challange

Climate change is seen as a growing global issue that is mentioned every year. To begin with, we researched areas where we could help tackle the problem. We realised that if we wanted to contribute to tackling this problem then we needed to focus on certain areas that impact pollutant levels.

Define - Use Case

We have concluded that the problem lies in evaluating environmental data efficiently to improve pollutant levels across local areas. As a collective we believe that analysing the data will result in us improving environments and lead us to a more sustainable future.

Ideate - Solutions

As a team we began by brainstorming different ideas and taking parts of each idea to make, what we believe is the best solution. We then spoke to our mentors and tutors to ask for advice and suggestions to again better our solution and made any needed adjustments.
In the end, we decided that the best way to collect the data was through use of small devices placed in different locations allowing users to compare different environments and identify the worse polluted areas and form a targetted approach to help reduce the levels of pollution.
The device will contain a micro computer, which will collect the data from the sensors and then transmit it to a central location for users to log in and view. The device will be low maintainance and due to its size have a low impact on the environment.

Prototype - Application

The below images show us testing our prototype.
In this image we connected each of the sensors to the breadboard following wiring diagrams and then connected them to the GPIO pins on the Raspberry Pi. We connected each sensor one at a time and got it working before moving onto the next component.
Firstly, we started with a simple LED circuit where we got the LED to pulse on and off. Secondly, the LDR which then outputted resistance values. Following this we connected the temperature and humidity sensor, which was the most difficult component to get working.

Final Prototype

Here are some images of the user interface.
The user will be able to view the location of the devices, data from the devices (graph form) and be able to add new devices if needed.
GUI Menu
GUI Add Device
GUI Device Location
Example GUI Graph

Test - Results

Once the device was enclosed in a plastic waterproof container, we tested everything again and debugged any issues which we came across.