Raspberry and standard-4-channel TA-6560-board from china

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16 Apr 2017 15:53 #91458 by wicki
I'm testing linuxcnc/machinekit on a raspi 2.

Software is runnings now, but before I try to connect the gpio-output to the board input,
I checked the Voltage. And what I saw: 5 Volt between the board input and raspi-ground.
(both ground-levels are connected)

5 Volt seems to be to much for the gpio-output. opto-isolators an on the input-side....
where there are 5 volt?

is anybody using such a board together with a raspberry?

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