Datasheet

Jon Waddington
12
3 Design of the Information System
The central component of the Information System is the Propeller chip. This is connected
to all the separate features of the system, which are the television circuit, clock,
temperature sensors (indoor and outdoor), the IR receiver and the X10 controller. A
schematic of the Information System can be seen in figure 3.1.
Figure 3.2 shows an annotated photograph of the Information System circuit. This is
connected to the Propeller demo board.
Figure 3.1. Schematic Diagram of the Information System
Parallax
Propeller
Real Time
Clock
X10 Controller
RS232
Circuit
Television
Television
Circuit
Internal
Temperature
Sensor
IR Receiver
XBEE
Coordinator
XBEE Router
External
Temperature
Sensor
DB9 Connecter
XBEE Receiver
IR Receiver
RTC
Internal
Temperature
Sensor
MAX3232
Power and Propeller Pin
Connecters
Figure 3.2. Photograph of the Information System Circuit