DOODLE DRIVE Presenter: Alex Curtis Team 6 Environmental Impact TCSP

PROJECT OVERVIEW  Android application as controller  Robot vehicle with microcontroller  Path will be drawn in Android application and the vehicle will follow that path  Outdoor mode with GPS, Google Maps, Compass  Indoor mode with tilt control

ENVIRONMENTAL LIFECYCLE IMPACT ANALYSIS  MANUFACTURE  Printed Circuit Board  Components  Batteries  NORMAL USE  Maximize lifetime  Energy consumption  DISPOSAL/RECYCLING  Recycling of possible components (batteries, robot, electronics)  Proper disposal if recycling not possible

MANUFACTURE  Printed Circuit Board  Choose manufacturer and specifications correctly  RoHS (restriction of hazardous substances) compliant solder finish  Lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenylether  Advanced Circuits uses tin copper alloy as solder finish, another common example is Electroless Nickel/Immersion Gold (ENIG)  Minimize area of PCB  Components  RoHS compliant  Batteries  Device only compliant with Nickel Metal Hydride  Environmentally friendly, don’t use toxic chemicals of alternatives (e.g. Cadmium)

NORMAL USE  Maximize product lifetime – user awareness  Batteries  Store in cool, dry, place  If not used for months at a time, recharge periodically  Charge cycles variable, times, depends on use (don’t overcharge)  Energy Consumption  NiMH high self discharge rate (1-4% daily)  ~500mA at 5V, ~100mA at 3.3V, ~1500mA at 7V (P = = 13.33W)  Battery pack 2800mAh capacity  Under ideal conditions can run for 1.75hr

DISPOSAL & RECYCLING  Batteries  Nickel Metal-Hydride (NiMH)  Should be recycled in proper repository  If recycling unavailable, don’t dispose of 10+ at once (Buchmann)  Physical Robot  Recycle plastic chassis  Rubber wheels (if possible)  Electronic Components  Electronic recycling center

QUESTIONS?