Friday was a long day and after finishing the schema of the TP PCB, we continued to work on the project choosing some components and doing some tests with the capacitive sensor. The idea is that the proximity of our hands of an iron wire will change its capacity in a way that we can measure by analyzing the time delay between a signal sent in one side and received in the other. After a lot of different tests, we were only able to obtain significant differences when we touch the wire, but not when we are near the wire, as we hoped. This means we’ll have to use an other kind of sensor.
We also started working on some PSSCs such as the architecture and the choice of components.