what I'm missing here

Hello Nick, thanks for your quick response..i'm very grateful

The reason why i was converting to String is just because i want to see the data via Serial monitor..hehe

I've tried sending char,

        myChannel.sendMsg(tag,sizeof(tag));

but i got these error message

Arduino: 1.0.6 (Windows 7), Board: "Arduino Uno"
TrySendRFID.ino: In function 'void SendingData()':
TrySendRFID:110: error: invalid conversion from 'char*' to 'const byte*'
TrySendRFID:110: error: initializing argument 1 of 'void RS485::sendMsg(const byte*, byte)'

Am i wrong at my structure of programming or something?

Thanks Nick :slight_smile: ~