1. They are simple opto isolated BoBs as per the opto boards at www.embeddedtronics.com.

    I was going to use one as extra inputs, but that plan has been revised

    I don't know what I did, but an earth track burned (twice). They could probably be fixed with a jumper wire. As I have a tube of the optos (HCPL2631), so I will include a dozen of them. It is probably wise to change them. If you are interested PM me with your address and I will put them in the post.

    I don't do religion, so Happy Holiday !


    Last edited by cropwell; 22-12-2015 at 05:37 PM.

  2. They have been promised now.



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