Not mine, but my now colleagues attended a World Bank supported hackathon [1] and created the prototype for a water quality testing kit for smartphones, Caddisf

Not mine, but my now colleagues attended a World Bank supported hackathon [1] and created the prototype for a water quality testing kit for smartphones, Caddisfly [2]. It ended up becoming a product which essentially gives you very close to lab results from an inexpensive and easy to operate field kit. I normally consider hackathons a questionable way to engage the tech community. In my opinion they seldom lead to anything sustainable and set the wrong expectations. [3] Disclosure: I helped finance the continued product development through our organisational work. [1] http://www.techsangam.com/2011/11/08/my-thoughts-on-bangalore-first-water-hackathon/ http://www.techsangam.com/2011/11/08/my-thoughts-on-bangalor... [2] http://www.sciencedirect.com/science/article/pii/S0048969716301553 http://www.sciencedirect.com/science/article/pii/S0048969716... [3] https://www.citylab.com/life/2013/07/are-hackathons-stupid/6111/ https://www.citylab.com/life/2013/07/are-hackathons-stupid/6...