I have dowloaded this one, that have firmware improvments from V1:
T12-soldering-stationV2.zip
After i replace the "disp.init();" to "disp.beginN();" it compiles ok. But in a arduino nano, because it dont fit in a arduino mini like in the project. I will test it and give you feedback soon. Thanks!
Thank jfjlaros you for being patient in discussing various details in private and reaching a conclusion. The change he made solved my problem in the project. Thanks
After connecting everything, now I have a problem.. When I turn on the station, the iron does not stop heating until it becomes incandescent. I don't know that my connection is not correct or what type of component is not properly connected. Any suggestion ? Thanks