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Ness Output Expander inverted logic?
Hi,
Does anybody have experience with the Ness Output Expander? I'm curious to know if I'm doing something wrong.
The LED's on board function correctly, but my output is inverted.
Ie. When a aux output is on, the LED corresponding is on, however the output voltage on the output terminal is grounded (12v when off).
I am trying to avoid putting in a couple of hex inverters or using a ULN2803.
Kind regards,
Josh
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yes, this is correct. All the outputs are high and go low on activation. Same for the outputs on the panel itself. So take the + rail and use the output for switch to neg-
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