@Orionn wrote:
I have an emonpi, with the bundled temperature sensor and pulse counter. I have made my own RJ45 breakout by just double-jumpering each wire together into two RJ45 “mechs”. I have tested this by running ethernet over each port (one at a time, of course), so I know they’re electrically fine.
When I plug this cable into my emonpi, only one will work (either the temp sensor or the pulse counter). Do I need to do something special to get them both to work, like use a pull up/down resistor or something? The breakout on the shop web page has a resistor or something in the picture, but I can’t find any diagrams or explanations on it.
The only suggestion I can find by googling is that it’s a cable length issue. My breakout cable is about 1m long, and the temp sensor and pulse counter are standard - about 1m and 0.5m, respectively. The only other thing I can think of is that I need to wire them in a loop, rather than a star - can anyone provide a pinout or advice on that?
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