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I'm currently learning to design a PCB. For this board, I want to sense the current in two different ways (using either analog or digital current sensors). Each sensor requires a current sense resistor with a different resistance value, and I want to keep my board flexible so I don't want to attach both resistors at the same time to the rest of the board, but instead design it in a way that I can choose which one to attach. As far as I know Variants can be considered, or maybe adding jumpers and manually connecting the current sensor that I want, but I'd like to know if there are any better suggestions from a more experienced point of view.

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    \$\begingroup\$ you want to put both sensors on the board? then just design a board with both sensors \$\endgroup\$
    – Stack Exchange Supports Israel
    Commented Mar 3, 2023 at 10:37
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    \$\begingroup\$ So, do that? It seems like a circuit design question but not an Altium question. You can use jumpers so that your data connection is wired to one sensor or the other. \$\endgroup\$
    – Stack Exchange Supports Israel
    Commented Mar 3, 2023 at 10:42
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    \$\begingroup\$ Resistors (including current sense) are inexpensive so unless you need to save every penny there doesn't really seem to be a compelling case for only putting one down. The design work for the flexibility would cost more than the resistor. Just design for both sensors and attach the desired one. \$\endgroup\$
    – Peter Smith
    Commented Mar 3, 2023 at 11:43
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    \$\begingroup\$ You can also consider using the same current sense resistor for both, and converting the measurement in software. E.g. resistor twice as big as it should be = meter reads twice what the current actually is, so just divide it by 2. \$\endgroup\$
    – Stack Exchange Supports Israel
    Commented Mar 3, 2023 at 11:48
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    \$\begingroup\$ Jumpers in the middle of a sensitive current measurement is probably not a great idea. Jumpers in general is an open invitation to quality problems. Other than that, having several different BoM for the same PCB is common. It is usually also a great way to create logistics/spare part quality problems. What's best for any given scenario is a business decision based on production volumes. This isn't a call someone else can do for you. \$\endgroup\$
    – Lundin
    Commented Mar 3, 2023 at 12:19

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