Iteration 1: Speculate phase

Prioritized total feature list/tasks.

• Detect walking with accelerometer (high) 40 hours

  • Figure out best way to measure ROM (med) 40 hours

    • Measure knee ROM with potentiometer on hard brace (high) - 24 hours

    • Use switch on brace hinge to detect full extension (low) - 10 hours

    • Pressure sensor (low) - 10 hours

• Use BLE/wifi to send data to computer for analysis (low) - 50 hours

  • Data analysis (medium) - 50 hours

• Battery

  • Test 9V battery (medium) - 2 hours

  • Test portable phone charger battery (medium) - 2 hours

• Feedback mechanism (high)

  • Test coin buzzer (high) - 2 hours

  • Test haptic response (low) - 2 hours

2 - Work planned

• I will be working on using a potentiometer integrated into the had brace to measure the ROM of the knee . Getting our battery sorted, exploring options including drone and vape batteries.

Outcome of iteration 1: low fidelity semi working prototype. This will include some type of ROM measurement taken, connection between ROM data to computer via bluetooth, and then some value sent to the feedback mechanism that causes an alert.