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Development Simmbus mother board DT004

This board is used in conjunction with the DT206 board to form an Atmel AT89C2051 programmer. It is also used with DT104 target boards to make 2051 projects.

Another use of this board is to provide an interface for PC interfacing projects. For example driving leds, relays, LCD screens etc from your computer.

Not all the components shown are required for a programmer, however this is probably the most useful configuration for most projects. In the prototype area I have fitted a 3 pin single inline header (hard to see). This header is used to connect to a RS232 lead. The wiring for the header is jumpered on the back of the board.
 

Photo of the jumpers for RS232 connection.
 

Serial cable to connect from DT004 board to a 9 pin RS232 computer port.

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