Topic: "Interface have unknown control" issue
Hello everyone. I have an issue. I made a small home monitoring project that was running perfectly before this morning. I added a button and suddently, I had this error: "Connection is established, but interface have unknown control. Try update the app." I removed the added button and I still have the same error. I am using a Mega2560 with W5100 Ethernet shield and a pro version IOS app.
Do you have some ideas. Thank you guys in advance for your help.
Dan