2- Building the device.

On the one side, writing the code and making every part communicate ans work as I wanted. On the other side, prototype the actual physical device. This was first connecting the hand to the fan, which was the most difficult part and the one that didn’t end up as I wanted. The limitations on the power force of the fan made me have to use a smaller hand. The second part was connecting the servo to the fand to make sure that I was going to be able to click the button and turn the fan on and off. To do this I placed the servo in place and used the ‘brute force algorithm’ of lots of silicon gun glue until the fan and the servo were one very rigid solid.

Bellow a detailed view of the connection between the servo and the fan, and the on/off when the proximity sensor is activated.