We first designed a preliminary model of the container of the device and fabricated it using 3-D printing. The electronics sit in a small box adjacent to the urine collection cylinder. A large funnel collects the urine into the measurement cylinder. Urine in the collection cylinder is held by a servo controlled blocking mechanism. A small LED illuminates the collection chamber from the bottom, while the color sensor enters the collection chamber from the rear. Two pressure sensors enter the measurement chamber from the side. The entire device is held to the toilet bowl via two arms. 

This is a very basic design that needs a lot of improvements especially with user-friendliness. First of all, it is too big and bulky. We plan on brainstorming ideas for a more non-intrusive, user-friendly urine collection receptacle. 

Fig1: The Design (with lid removed, exposing the Arduino)

Fig2: Design Showing Servo Controlled Release Mechanism