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Old 07-20-2014, 04:09 PM   #6716 (permalink)
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Join Date: Aug 2010
Location: Amsterdam
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Its weird..

If I connect the controller with real term with an usb-rs232 cable, I see the rtd data.. so the output of data from the controller works.

If I connect the shield to the usb-rs232 cable and connect rx and tx on ttl level on the shield the data is echoed.. so the shield is good.

But if I connect the shield to the controller nothing works.. no data on the outputs and led's don't flash up..

I don't get it.. anybody an idea?

Maybe the controllers rs232 levels aren't sufficient for the shield but are for the usb-rs232 cable?
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MPaulHolmes (07-20-2014)