Lifting Body
Plans
Short term (next 2 - 3 weeks) aim - develop lifting body system - aim to assemble next weekend - launch following week:-
Steve to:
Send TX (and lead + plug) done
Send Servo Driver done
Make Servo Current sensor and power regulator + Li-Ion batteries.
Finish lifting body model, Drop test and determine glide ratio - produce scaled version for predicted weight
Work out antenna system (copper strip on inside surface of lifting body?)
Make 3.3V FET pyro-drivers done
Ed to:
James & Ed to
James to:
Components
Gumstix Connex 400xm
Audiostix 2 Daughter Board (+ gumstix + gps = 30g)
EM-406A GPS
Servo driver (20g)
Servo (25g)
2 x Cutdown circuits (20g each)
Radio transmitter (25g)
Lifting body
Piston released parachute
Total Weight = 150g (gumstix,board,gps,servo,servo driver,2x cutdown circuits, radio transmitter)
Construction
jcoxon
Wire up
GPS unit -done
Servo driver
Radio
Cutdown circuits
Complete Software
rocketboy
Design Lifting Body
Construct
edmoore
Code
gpsparser.c - C program that opens the serial port and receives NMEA strings, searches each string for either $GPGGA or $GPVTG and then splits these strings into float variables converting long and lat into decimal.
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navsoft.c - Combining GPS parser with Servo 2 and some calculations to work out distances and bearings - also shifts the servo accordingly. Jcoxon version of adjustment - will update with more advanced edmoore version.
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