After looking at our complicated setup, Dr Tony recommended a stackable prototype shield. Since shields could be stacked, this allowed for more connections to the Arduino. The idea was to stack the prototype shield – which could be designed individually for our own usage – on top of the Arduino and connect the UI to the prototype shield. This time, we learned from our mistakes and did prior checks to ensure that the digital pins required for the UI were present on the prototype shield. Next, the Ramps 1.4 board would be stacked on top of the prototype shield and the five motors will be attached to the Ramps 1.4.