Hi! Im working on a project. One Arduino with 5 normal switches and 3 Leds. My problem is the distance between the switches. i have to deal with approx. ~200m. Some first experiments with an nrf-module were quite good but i want to try cable also. Is it possible to use a cable in these length?!

Max. Length of cables

LarryD April 28, 2018, 6:16pm 2

What is '5 normal switches'.

200m?

Use opto isolators at the Arduino location.

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