slide1
Download
Skip this Video
Download Presentation
TCSP – Schematics Design

Loading in 2 Seconds...

play fullscreen
1 / 12

TCSP – Schematics Design - PowerPoint PPT Presentation


  • 169 Views
  • Uploaded on

TCSP – Schematics Design. Major Components. Freescale 9S12A64FCUE Microcontroller Etek EB-85A GPS Receiver Electronic Speed Controller HP Photosmart R707 Digital Camera microSD Card Reader External LCD Interface Melaxis Thermopile based Tilt Sensor LM2679 based Power Supply.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' TCSP – Schematics Design' - tallys


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide2

Major Components

  • Freescale 9S12A64FCUE Microcontroller
  • Etek EB-85A GPS Receiver
  • Electronic Speed Controller
  • HP Photosmart R707 Digital Camera
  • microSD Card Reader
  • External LCD Interface
  • Melaxis Thermopile based Tilt Sensor
  • LM2679 based Power Supply
slide4

Microcontroller

Decided on using a Pierce configuration for oscillator circuitry due to better performance and less circuitry as compared to Colpitts configuration.

Design was taken directly from manufacturer’s recommended layout.

Operating frequency will be set at 8 MHz via crystal oscillator.

slide5

Direction Controllers

Quad Servo Directional Control

Four servos Controlled via PWM through MCU during automated flight.

System Consists of four servos to control Rudder, Elevator and Ailerons.

Connects to MCU over a level translator to acquire a suitable voltage.

Melaxis Thermopile based Tilt Sensors

Circuitry consists of a set of two thermo radiation sensors connected to a

differential amplifier. Two sets are used for X and Y axis.

Voltage is re-biased using an LM741 to suitable levels for MCU.

slide7

Imaging Interfaces

Etek EB-85A GPS Receiver

Connects to the MCU via SCI interface. Uses 2 SCI enabled Pins.

Provides GPS Location, Altitude, Velocity and Bearing.

HP Photosmart R707 Digital Camera

Triggered via the MCU when target GPS Coordinates are reached. Uses 5 General IO Pins.

Uses a ULN2003A Darlington Transistor array to trigger voltage low.

slide8

External Interface

microSD Card Interface

Used to store GPS coordinates.

Interacts using SPI connection on MCU via 5V to 3.3V level translators.

External LCD Interface

Used for diagnostic purposes, connects to the system via an SCI interface.

slide10

Power Supply and ESC

LM 2679 Power Supply

Uses LM2679SD-3.3 and LM2679SD-5.0 regulators.

Will converted 11.1V DC from 3 cell Li-Po batteries to a stable 3.3V and 5.0V at 92% Efficiency.

Electronic Speed Controller

Regulates the speed of the motor based on a PWM signal input into it.

Connected PWM pin on MCU during auto flight.

ad