reaper7 67 Posted April 12, 2013 Share Posted April 12, 2013 this is not problem with use or not avalable() but with uart INT handler when You declare HardwareSerial mySerial(3); For me: incoming interrupt for Serial3 is called correctly but core lib HardwareSerial.cpp don't know that your mySerial is Serial3. I do not know how to solve this problem, how to assign mySerial to Serial3 but also would like to know the solution for WizFi library. Quote Link to post Share on other sites
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