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ruhe109568dAnd that's how busses where invented
Some microcontroller for the reader, like an ardurino and some sort of api on the rasp pi. The api should be fine with 100 nodes sending text requests, but this is depends on what you are doing with the data, the frequency of the requests and how well it's implemented
ruhe109568dAnother idea: use NodeMCUs instead of Arduinos and create a tcp server on the raspi. Then simply let the readers send their data without any wires.
As far as I know there is a new Arduino board that also supports WiFi, so you could use that, too
Oh wow, reading my texts I should probably stop writing stuff after waking up 😂
thanks for your input
That CAN bus looks promising
I don't know about wifi, the readers are not that far away
It only needs to send / receive few messages per second, maybe less, so traffic is not really a problem
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