Michigan Technological University Aerospace Enterprise CanSat Project

Team Joe Thompson – Team Leader, Electronics Sean Ritter – Electronics Nick Telenko-Structure, Top Deck Jeff Hanson-Structure, Top Deck Robert Emperley-Structure, Bottom Deck Nathan Beauchamp-Structure, Bottom Deck Daniel Vanderhoof-Ground Station

Joe Thompson – Team Leader, Electronics

Sean Ritter – Electronics

Nick Telenko-Structure, Top Deck

Jeff Hanson-Structure, Top Deck

Robert Emperley-Structure, Bottom Deck

Nathan Beauchamp-Structure, Bottom Deck

Daniel Vanderhoof-Ground Station

Design Overview Constructed from UHMW polyurethane and aluminum components Detachable parachute for controlled descent Onboard GPS for position tracking (4) uprighting legs (4) onboard cameras for panoramic picture (not incl. final)

Constructed from UHMW polyurethane and aluminum components

Detachable parachute for controlled descent

Onboard GPS for position tracking

(4) uprighting legs

(4) onboard cameras for panoramic picture (not incl. final)

Top Deck Design Dia: 2.6 in, Deck thickness: 0.25 in, Material: ABS plastic Main parachute lines are attached to a parachute nut in the center of the top deck. Steering lines are attached spools that are driven by the motors. Motors attached to worm gears, which rotate the spools, make the CanSat controllable. Parachute motors are mounted on the underside of the top deck. Motor mounts are made of Lexan

Top Deck Design

Dia: 2.6 in, Deck thickness: 0.25 in, Material: ABS plastic

Main parachute lines are attached to a parachute nut in the center of the top deck.

Steering lines are attached spools that are driven by the motors.

Motors attached to worm gears, which rotate the spools, make the CanSat controllable.

Parachute motors are mounted on the underside of the top deck.

Motor mounts are made of Lexan

Bottom view of top deck; motors, motor mounts, and worm gears Top view of top deck; spool, gears, parachute nut

Bottom Deck Design Dia: 2.6 in, Deck Thickness: approx. 1.25 in at outside edge, approx. 2.0 in at center. Motor mounted in the center of the deck turns the center shaft which lowers the uprights, making the CanSat upright itself. When not lowered, uprights will tuck under the top deck and fit within our 2.6 in dia. Linkages are long enough that the uprights will lay flat when completely lowered.

Bottom Deck Design

Dia: 2.6 in, Deck Thickness: approx. 1.25 in at outside edge, approx. 2.0 in at center.

Motor mounted in the center of the deck turns the center shaft which lowers the uprights, making the CanSat upright itself.

When not lowered, uprights will tuck under the top deck and fit within our 2.6 in dia.

Linkages are long enough that the uprights will lay flat when completely lowered.

Drawings/Photos

Holes for wire and antenna routing All unused MCU pins brought out to header providing modularity Surface-mount components allow for high density layout

Holes for wire and antenna routing

All unused MCU pins brought out to header providing modularity

Surface-mount components allow for high density layout

Power Polymer Lithium/Ion Battery—3.7 volt, 1100 mAh x 2 Specially Designed Lower Deck Compartment Consistent Electronic Voltage of 3.3 Volts controlled by low-dropout regulator

Polymer Lithium/Ion Battery—3.7 volt, 1100 mAh x 2

Specially Designed Lower Deck Compartment

Consistent Electronic Voltage of 3.3 Volts controlled by low-dropout regulator

Communication Aerocomm AC4490 Transceiver 4 mile LOS range 902-928MHz frequency range 21 gram weight 115.2 kb/s data transmission rate

Aerocomm AC4490 Transceiver

4 mile LOS range

902-928MHz frequency range

21 gram weight

115.2 kb/s data transmission rate

Flight Software Language: MPLAB C30 Microchip IDE used to write and develop code In-circuit debugging / programming Fully integrated software design suite Simulation capabilities

Language: MPLAB C30

Microchip IDE used to write and develop code

In-circuit debugging / programming

Fully integrated software design suite

Simulation capabilities

Station Integration Laptop computer running MATLAB USB radio interface Data-logging interface, no GUI was created for this year

Laptop computer running MATLAB

USB radio interface

Data-logging interface, no GUI was created for this year

Cost Summary Structure Ground Station UHMW Plastic $40.00 Laptop $150.00 Aluminum Uprights $5.00 Radio Set $125.00 Fasteners $10.00 Battery Charger $25.00 Motors $60.00 Electronics Services Polymer Lithium Ion Batteries - 860mAh $8.95 Pcb Manufacturing $170.00 JST Vertical Connector $0.95 Solder Stencil $35.00 Jumper Wire - JST Black Red $0.95 MPLAB Compatible ICD2 with USB $119.95 USB Cable A to B - 6 Foot $3.95 Polarized Header for Breadboard and ICSP $1.25 CAP CERAMIC 4.7UF 6.3V X5R 0603 $0.19 IC MOTOR DRVR STEPPER DUAL $1.11 Total To Date: $1,038.04 CAP .1UF 16V CERAMIC X7R 0603 $0.04 Hardware Cost: $473.04 IC LDO REG 1A 3.3V SOT223-3 $1.73 CAP CERAMIC 10UF 6.3V X5R 0603 $0.36 IC DSPIC MCU/DSP 64K 64TQFP $10.08 SENSOR 30-120KPA SPI $20.30 CONN 20POS 2MM HEADER DUAL GOLD $1.48 CONN 20POS 2MM SOCKET VERT PC MT $2.02 CABLE ASSEM 2MM 20POS F-F 2" $9.62 CAP 1UF 6.3V CERAMIC X5R 0603 $0.07 CAP .47UF 6.3V CERAMIC X5R 0603 $0.05 Radio $75.00 GPS $100.00

Preparation & Launch

Flight Data

Flight Data *wunderground.com history for APRSWXNET (PWS) 14 June 2008

Flight Data

Flight Data

Lessons Learned Parafoil Recovery Extended descent time Improved Trajectory Control

Parafoil Recovery

Extended descent time

Improved Trajectory Control

Lessons Learned (cont.) Antenna extension Raise from ground level for LOS Quick portability – 10m+ extension cord Pre-launch push-button operation demo Ability to diagnose problems early

Antenna extension

Raise from ground level for LOS

Quick portability – 10m+ extension cord

Pre-launch push-button operation demo

Ability to diagnose problems early

Questions?