We're brand new to the Opta Arduino software and attempting to draw our first sketch and download the code program to the module. Our program is very small just while we get our heads around the software. However, we've hit a fullstop with the following message when attempting to download the program to the module - 'ERROR: Project I/O expansions configuration is different from the detected one. Can not download'.
We have the 'Opta Advanced' base module with the 'EMR' expansion module as we are looking for additional outputs.
Any suggestions please to help us get round this? Keep it simple because we're learning!
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Hi dazzlebyopta,
Have you seen this tutorial?
https://docs.arduino.cc/software/plc-ide/tutorials/opta-expansions-plc-ide/
Try checking your steps with this one, maybe you missed something like updating firmware or something
Thanks for your help. I found the issue - we hadn't powered up the extension module.
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