Can I use more than 2 of the relayISOx16 on the Hydra? [4.2 SDK]

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1

Board: FEZ Hydra (Has 9 Type Y Sockets)
Module: relayISOx16 (The 16 relay module)

Can I use more than 2 of the relayISOx16 on the Hydra? The relayISOx16 is a Type Y Socket, but gadgeteer only lets me connect to Socket 3 or 4.

2

Sounds like a driver problem. Apparently, the driver thinks it requires an “S” type socket. The module clearly requires a “Y” and there are clearly plenty to choose from.

Yep…GadgeteerHardware.xml clearly has a bug…


      <Sockets>
        <!-- This example socket is compatible with socket type S, and it has electrical connections to pins 3,4,5,7,8,9, with 7,8,9 being shareable (SPI bus) -->
        <Socket Left="70" Top="49" Orientation="180" ConstructorOrder="1" TypesLabel="S">
          <Types>
            <Type>S</Type>
          </Types>
          <Pins>
            <Pin Shared="false">3</Pin>
            <Pin Shared="false">4</Pin>
            <Pin Shared="false">5</Pin>
            <Pin Shared="true">7</Pin>
            <Pin Shared="true">8</Pin>
            <Pin Shared="true">9</Pin>
          </Pins>
        </Socket>
      </Sockets>

should be…


        <Socket Left="70" Top="49" Orientation="180" ConstructorOrder="1" TypesLabel="Y">
3

@ ianlee74,
Did you look at the driver itself? I hope it doesn’t infact rely on SPI too. Then it will be more than just fixing the xml…

4

It is just an error in the GadgeteerHardware.xml file. The actual driver code doesn’t use SPI at all.

5

Thanks