Selecting a 15m cable for MPU6050

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hello,

could please tell me if there minimum cross-sectional area or other requirements consider while selecting cable connect mpu6050 , uno @ distance of 15m ?

part of project consists of 2 unos , mpu6050. uno powered computer usb, powers uno b connecting 5v pins. mpu6050 connected , powered 3v3 pin on uno b.

any suggestions hugely appreciated! :d

quote
other requirements consider while selecting cable connect mpu6050 , uno @ distance of 15m ?

this device uses i2c bus information on relevant.
however 15m way on top communication on i2c without buffers.
this facing:-
http://www.nxp.com/products/interface_and_connectivity/i2c/i2c_bus_repeaters_hubs_extenders/

one of main criteria capacitance of wires steer clear of twisted pairs.


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