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Master Board

Overview

The Master Board contains an Atmel AVR AT90S8535 running at 8MHz which receives data packets from the Current Sensor and Extra Sensor Boards and packages them up into data packets which are sent to the TRX2205A transciever for wireless transmission as well as display some data in visual format by sending data packets to the four dash displays. The master board also receives the 12V and tacho signal from the Connector Board and passes them on to the Extra Sensor Board.

• CPU Circuit Diagram - including the AT90S8535, reset, SPI, AVcc
• IO Circuit Diagram - mostly just the connectors
• TRX2205A Circuit Diagram - including the TRX2205A transciever and the LM317 voltage regulator
• PCB Picture - a picture of the partially completed board
• PCB Layout - showing the layout of the PCB
• PCB Film - single sided film needed to etch your own board
• Protel Files - all the protel files associated with the board