TCSP – Design Constraint Analysis
Design Constraints Primary Constraints Weight - Component Size Power Consumption Secondary Constraints Navigational Accuracy Interfacing
Microcontroller Freescale MC9S12A64CFUE HCS12 Architecture QFP 80 package 2x SCI, SPI, I2C, 8ch PWM, 8ch Timer 64K Flash, 4K RAM 59 I/O pins
Navigation Garmin 15L GPS Module < 3m Position < 5m Altitude Small, uses external antenna Hitachi HM55B Compass Module 5.5 degree accuracy Previously used Cheaper than other modules
Camera HP Photosmart R707 Can already control Can be mounted to plane and balanced Free
Plane Upgrades Mega 16/15/4 Brushless Motor Fits in existing motor slot Recommended by many RC plane enthusiasts Upgraded Battery Lithium Polymer 1100 -> 3300 mA-hr