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by opwieurposiu
518 days ago
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When I was designing boards, we had 1-2 standard types of connector we were allowed use, that had an even number of pins. So we would use a different number of pins for each connector on the board, even if some of the pins were not used. It looked kind of silly to see 4 wires in a 12 pin connector but it was better then getting them mixed up. |
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I'll try to plan uses for all the pins in advance, like a deluxe version, and then cut down what's needed for the thing I'm doing now. Often I can actually add something useful (like an extra copy of a signal to reduce the need to splice in the harness) at no cost, just by thinking ahead a little.
Another thing I'm proud of recently, is having an uncommitted relay on a board, whose function could then be defined by how the harness was wired. Rather than try to anticipate how it would be used, I just figured it'd be handy. Provided an extra ground too, so you could just put a hairpin wire in the connector to ground one side of the relay since that's a pretty common usage model. And for builds where we knew we wouldn't use it, just DNP at assembly time.