rburton wrote: ↑
Thu Apr 25, 2019 8:20 pm
I have a project, with multiple sensors, these are positioned all around the room with the pi being central.
What is the maximum length for the wiring and is there a way of working it out its round 4m I need?
There is no useful "one size fits all" answer to your question.
You will need to consult a datasheet for each individual type of sensor to check their characteristics and operational limits.
Some, like '1-wire' devices may have buses that allow cable runs of 10's of metres.
Others may be much more demanding and have power or timing constraints that limit them to a few millimetres.
You might need to rethink the topology and deploy a number of RPi nodes close to where the sensors need to be installed?
The summary from @andyroo as I was typing this is succinct, as usual...