The goal of the Electro-Mechanical Integration team is to create a user-friendly interface that allows the wheelchair user to control the system. This includes control over whether the system is automatic, semi-automatic, or manual as well as altering the speed and direction of the wheelchair in automatic mode and the assistance level in semi-automatic mode. There will also be an LCD screen that allows the user to check the battery level, speed, effort level, and which mode their wheelchair is in.
Table 3: Electro-Mechanical Integration Team Specification and Metrics
| # | Metric/Specification | Minimum Value | Maximum Value | Unit | Maximize /Minimize/ Target/ Constraint | Constrained Max/Min |
| E1 | User have control over the speed in automatic mode | -0.2 | 0.2 | mph | Target | Necessary |
| E2 | User have control level of assistance in semi-automatic mode | -2 | 2 | % | Target | Necessary |
| E3 | System should not overheat | 104 | °F | Minimize | 302 | |
| E4 | Ability to quickly disable electronics and motors | Necessary |
E1. If the wheelchair is in automatic mode, the user should be able to adjust the speed of the wheelchair. The accuracy of the speed read from the potentiometer should be ± 0.2 mph. The user must feel comfortable in the wheelchair and the way in which it is performing.
E2. The user will change the amount of assistance desired in semi-automatic mode by a potentiometer on the interface housing. The user should be able to be within ± 2% of the desired effort level in order to ensure the user is comfortable using the wheelchair.
E3. Fans are being used to remove the heat inside the housing from the electrical components. The system should not overheat and damage any of the internal electrical components. At 104°F , the user may be uncomfortable touching the interface, defeating its purpose, and at 302°F, the interface itself will begin to melt.
E4. An emergency stop button will be on the side of the interface housing for the user to press in the case of an emergency. Pressing this button will stop all electronic components and the running motor. The emergency stop returns the wheelchair to its manual mode.