On 21 Jul, 2015 By nora 0 Comments
We developed for the project "Bank für Gemeinwohl" seven interactive voting modules. By touching the logo on the outside of the window pane the counter number moves up. For the detection of the contact, a metal foil was placed behind the window pane and is connected to an IO pin of an arduinos.
The Arduino continuously measures the capacity when a finger is placed, the capacity increases rapidly and is used as a trigger.