For my project, the smart-cast, integration was the toughest challenge to overcome! Simply put, our project had several components from both a hardware and software perspective. It’s very easy to get one sensor working to give an output signal on a serial monitor, but taking that sensor data and displaying whilst datalogging it whilst checking to see if it hit a threshold whilst taking other readings whilst writing raw data to another data file….you get the point. We were able to get every component working very early on in our project. The majority of our time spent on the project has been system design and integration. Whenever something did not integrate properly, we first did verification tests on the components separately, and if those passed, we checked bother the software and hardware side separately of both components working in tandem. 99% of the time, if two components didn’t integrate properly, it was either the hardware wasn’t set up right or the software wasn’t written properly. Rarely has something not integrated based off of faulty components. Even still, though we have a working product, we are continually working on our device to optimize it and make the system design more stable. Integration is always a work in progress.