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flores · 07-20-2014, 04:09 PM

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?

07-20-2014, 04:09 PM	#6716 (permalink)
flores EV Connoisseur Join Date: Aug 2010 Location: Amsterdam Posts: 309 Thanks: 70 Thanked 109 Times in 90 Posts	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?