A set of two sub-projects focused on collecting and presenting (as a heat map) user contributed weather data.

This project is solving the Cool it! challenge.


This project explores two sides of collecting and presenting user contributed weather data. For the first half, we've put together a set of Arduino-based sensor devices and for the second half, we've explored building a local heat map using the same data.

The project is targeted around the Met Office's WOW web service, which allows users to contribute their own weather readings and subsequently allow users to visualise and extract it out.

Early on in the project, we explored ways in which we could help contribute data to WOW and this is what inspired the first half of the project. For the second half, we wanted to touch on the specifics of the "Cool It" challenge by taking the WOW output a step further and visualising the urban heat island effect around the City of Exeter.

Project Information

License: MIT license (MIT)

Source Code/Project URL: https://github.com/nickcharlton/localheatmap


Hardware Source - https://github.com/aulday/cool-it-devices
Arduino Sensor Code - https://gist.github.com/nickcharlton/10579986


  • Tom Halliday
  • Christopher Sargeant
  • Lizzy Brock
  • Patrick Ewen
  • Siddharth Vadgama
  • Simon Cotts
  • Paula Taylor
  • Edmund Henley
  • Nick Charlton