Wheelchair Project Journal!

TITLE: Customized AI Electric Wheelchair

AUTHOR: PRISCA CHIEN (U0741Q95Y02)

DESCRIPTION: my own motorized wheelchair with ai

CREATE DATE: July 27

Prisca: 73 hours

Updated until: Jul 31

🗓️ July 27 - 12 hrs

• Researched components for wheelchair
• Looking for the cheapest price for all components (this actually took such a long time)
• Searching YT tutorials and looking at companies who've made electric wheelchairs for inspiration when designing my own parts for the electric wheelchair

🗓️ July 28 - 15 hrs

• More research done on components for wheelchair (yes more research there was a lot I didn't know like TVS diodes, schottky diodes, and when to use capacitors)
• Finalizing which electronics should be module and which should be embedded on the board
• Found all links to buy components I need for this project
• Took dimensions of wheelchair to brainstrom 3d printable ideas

🗓️ July 29 - 17 hrs

• Started PCB schematic
• Finsihed PCB schematic
• Iteration 1 of the schematic

🗓️ July 30 - 15 hrs

• Started PCB Wiring
• Finished PCB Wiring (I will start using more modules cuz this wiring was insane to do)
• What it started out looking like

🗓️ July 31 - 14 hrs

• Updated schematic and wiring connection pins, added mounting holes and mounting hole pads
• Deciding whether to use copper pours or thick wiring
• Designed and cadded all 3d printable parts based on my wheelchair
  • Armrest mount with magnets
  • Walker handle and locking mech (copied fromy my wheelchair)
  • Battery box to hold 24V battery
  • PCB walls. I am leaving the front and back open to cool it down faster
  • Control panel with all six buttons and joystick. Will add breadboard in
  • Wiring will go from the PCB through the armrest mount to the panel
• Created GitHub repo and submitted everything!
• Rough design work for cadding parts