I left my classmate (Stephen Dunn) to attach one of the 20 pedometers to the heart rate monitor he was putting together. We were not able to obtain data from a group of volunteers in the end, due to time, but Stephen recorded the data of his activity over 24hours (A day per volunteer would have been spent, as there is only one Arduino). The Arduino needed to be powered by a battery pack of sort. We did not have such a battery pack, so Stephen carried around his laptop to power it.
Before that though, we sketched up some designs together for the outcomes.
While my classmate was building the recording device I created some laser-cut layouts in Adobe Illustrator to cut Perspex and plywood.
A5 plywood plates
Microscope Perspex slides
Plywood slide tray (for the mircoscope Perspex slides)
Plywood light-box (for the A5 Perspex)