Saturday, February 16, 2008

design I/O board for ngw100 ready


As promised in one of my previous blogs the I/O board drawing is ready to go in production. I post a complete picture separately for better view. What are the features of this i2c board:
          • 40 inputs
          • 40 outputs
          • 8 digital to analog outputs
The inputs are totally interrupt driven and will be handled by the user space program on the ngw. The board splits up the inputs / outputs by two 26 pin connectors for each. This was done to provide some compatibility with the older system. There will be a main supply of 12V which will also be used for the ngw. Leds are provided for input as well as for the outputs. This is useful specially in the test phase. Finally this board connected with ngw will act as the domotica heart of the system. I will release some more picture when the board is really made and soldered.

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